diff --git a/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj b/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj
index 558967d68c..1400c10a35 100644
--- a/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj
+++ b/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.CMD</RootNamespace>
     <AssemblyName>Wox.Plugin.CMD</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,15 +32,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
@@ -52,8 +54,9 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
     <Reference Include="WindowsBase" />
-    <Reference Include="WindowsInput">
-      <HintPath>..\..\packages\InputSimulator.1.0.4.0\lib\net20\WindowsInput.dll</HintPath>
+    <Reference Include="WindowsInput, Version=0.2.0.0, Culture=neutral, PublicKeyToken=9b287f7dc5073cad, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\WindowsInput.0.2.0.0\lib\net20\WindowsInput.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Plugins/Wox.Plugin.CMD/packages.config b/Plugins/Wox.Plugin.CMD/packages.config
index 2604e16d68..27ca96abd4 100644
--- a/Plugins/Wox.Plugin.CMD/packages.config
+++ b/Plugins/Wox.Plugin.CMD/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" requireReinstallation="True" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="WindowsInput" version="0.2.0.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Caculator/Calculator.cs b/Plugins/Wox.Plugin.Caculator/Calculator.cs
index f760746712..55ddbc8a67 100644
--- a/Plugins/Wox.Plugin.Caculator/Calculator.cs
+++ b/Plugins/Wox.Plugin.Caculator/Calculator.cs
@@ -1,14 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using System.Text;
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
 using System.Windows;
 using YAMP;
 
-namespace Wox.Plugin.SystemPlugins
+namespace Wox.Plugin.Caculator
 {
     public class Calculator : IPlugin
     {
diff --git a/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj b/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj
index ecd106896a..1cd71c38f2 100644
--- a/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj
+++ b/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Caculator</RootNamespace>
     <AssemblyName>Wox.Plugin.Caculator</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,6 +32,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="PresentationCore" />
@@ -41,7 +43,8 @@
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
-    <Reference Include="YAMP">
+    <Reference Include="YAMP, Version=1.4.0.22422, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\packages\YAMP.1.4.0\lib\net35\YAMP.dll</HintPath>
     </Reference>
   </ItemGroup>
diff --git a/Plugins/Wox.Plugin.Caculator/packages.config b/Plugins/Wox.Plugin.Caculator/packages.config
index 4e151aa36f..9639b55192 100644
--- a/Plugins/Wox.Plugin.Caculator/packages.config
+++ b/Plugins/Wox.Plugin.Caculator/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="YAMP" version="1.4.0" targetFramework="net35" />
+  <package id="YAMP" version="1.4.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj b/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj
index a58af35ba1..dd5366f5f0 100644
--- a/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj
+++ b/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Color</RootNamespace>
     <AssemblyName>Wox.Plugin.Color</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +30,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="PresentationCore" />
diff --git a/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj b/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj
index 87e3009c69..414e58b6e9 100644
--- a/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj
+++ b/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.ControlPanel</RootNamespace>
     <AssemblyName>Wox.Plugin.ControlPanel</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +30,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj b/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj
index 6fee33dade..5c8129d3c9 100644
--- a/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj
+++ b/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Folder</RootNamespace>
     <AssemblyName>Wox.Plugin.Folder</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,15 +32,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+    <Reference Include="log4net">
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+      <Private>True</Private>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.Folder/packages.config b/Plugins/Wox.Plugin.Folder/packages.config
index 2604e16d68..7ffe603846 100644
--- a/Plugins/Wox.Plugin.Folder/packages.config
+++ b/Plugins/Wox.Plugin.Folder/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" requireReinstallation="True" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj b/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj
index 7ebd0d1c92..20a919cfcf 100644
--- a/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj
+++ b/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.PluginIndicator</RootNamespace>
     <AssemblyName>Wox.Plugin.PluginIndicator</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +30,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj b/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj
index dd7ef42499..afee4f1712 100644
--- a/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj
+++ b/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj
@@ -9,10 +9,11 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.PluginManagement</RootNamespace>
     <AssemblyName>Wox.Plugin.PluginManagement</AssemblyName>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -22,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -30,11 +32,12 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
diff --git a/Plugins/Wox.Plugin.PluginManagement/packages.config b/Plugins/Wox.Plugin.PluginManagement/packages.config
index 4185726464..f827ca2442 100644
--- a/Plugins/Wox.Plugin.PluginManagement/packages.config
+++ b/Plugins/Wox.Plugin.PluginManagement/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj b/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj
index 995a0b86ec..9fcb0b2fb0 100644
--- a/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj
+++ b/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Program</RootNamespace>
     <AssemblyName>Wox.Plugin.Program</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,14 +32,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="log4net">
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+    <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.Program/packages.config b/Plugins/Wox.Plugin.Program/packages.config
index 2604e16d68..7ffe603846 100644
--- a/Plugins/Wox.Plugin.Program/packages.config
+++ b/Plugins/Wox.Plugin.Program/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" requireReinstallation="True" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj b/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj
index a26df36cab..7b63bb2a93 100644
--- a/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj
+++ b/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Sys</RootNamespace>
     <AssemblyName>Wox.Plugin.Sys</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,10 +32,12 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="log4net">
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+    <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.Sys/packages.config b/Plugins/Wox.Plugin.Sys/packages.config
index 633096dcf3..3a86f257e0 100644
--- a/Plugins/Wox.Plugin.Sys/packages.config
+++ b/Plugins/Wox.Plugin.Sys/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj b/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj
index 71fceb3fa4..a0511852b9 100644
--- a/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj
+++ b/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Url</RootNamespace>
     <AssemblyName>Wox.Plugin.Url</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -21,6 +21,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -29,6 +30,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="PresentationCore" />
diff --git a/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj b/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj
index 7a33c574cd..969c9a4984 100644
--- a/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj
+++ b/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.WebSearch</RootNamespace>
     <AssemblyName>Wox.Plugin.WebSearch</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,14 +32,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="log4net">
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+      <Private>True</Private>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.WebSearch/packages.config b/Plugins/Wox.Plugin.WebSearch/packages.config
index 2604e16d68..7ffe603846 100644
--- a/Plugins/Wox.Plugin.WebSearch/packages.config
+++ b/Plugins/Wox.Plugin.WebSearch/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" requireReinstallation="True" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Wox.Core/Wox.Core.csproj b/Wox.Core/Wox.Core.csproj
index 60115067ac..625467663c 100644
--- a/Wox.Core/Wox.Core.csproj
+++ b/Wox.Core/Wox.Core.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Core</RootNamespace>
     <AssemblyName>Wox.Core</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,15 +32,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="ICSharpCode.SharpZipLib, Version=0.86.0.518, Culture=neutral, PublicKeyToken=1b03e6acf1164f73, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\SharpZipLib.0.86.0\lib\20\ICSharpCode.SharpZipLib.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
@@ -96,6 +98,7 @@
     <Compile Include="Version\VersionManager.cs" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="packages.config" />
     <None Include="Plugin\README.md" />
     <None Include="README.md" />
   </ItemGroup>
@@ -109,9 +112,6 @@
       <Name>Wox.Plugin</Name>
     </ProjectReference>
   </ItemGroup>
-  <ItemGroup>
-    <None Include="packages.config" />
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/Wox.Core/packages.config b/Wox.Core/packages.config
index f688f319a2..9d8b9ccef9 100644
--- a/Wox.Core/packages.config
+++ b/Wox.Core/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" requireReinstallation="True" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Wox.CrashReporter/Wox.CrashReporter.csproj b/Wox.CrashReporter/Wox.CrashReporter.csproj
index 0c9dd25698..7ee104d81d 100644
--- a/Wox.CrashReporter/Wox.CrashReporter.csproj
+++ b/Wox.CrashReporter/Wox.CrashReporter.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.CrashReporter</RootNamespace>
     <AssemblyName>Wox.CrashReporter</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,11 +32,12 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+      <HintPath>..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Wox.CrashReporter/packages.config b/Wox.CrashReporter/packages.config
index 633096dcf3..3a86f257e0 100644
--- a/Wox.CrashReporter/packages.config
+++ b/Wox.CrashReporter/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Wox.Infrastructure/Wox.Infrastructure.csproj b/Wox.Infrastructure/Wox.Infrastructure.csproj
index ce32f2a4e0..b98ca7395f 100644
--- a/Wox.Infrastructure/Wox.Infrastructure.csproj
+++ b/Wox.Infrastructure/Wox.Infrastructure.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Infrastructure</RootNamespace>
     <AssemblyName>Wox.Infrastructure</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -24,6 +24,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -33,16 +34,17 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+      <HintPath>..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.VisualBasic" />
     <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
@@ -75,15 +77,15 @@
     <Compile Include="Unidecoder.cs" />
     <Compile Include="WindowsShellRun.cs" />
   </ItemGroup>
-  <ItemGroup>
-    <None Include="packages.config" />
-  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Wox.Plugin\Wox.Plugin.csproj">
       <Project>{8451ecdd-2ea4-4966-bb0a-7bbc40138e80}</Project>
       <Name>Wox.Plugin</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/Wox.Infrastructure/packages.config b/Wox.Infrastructure/packages.config
index 2604e16d68..7ffe603846 100644
--- a/Wox.Infrastructure/packages.config
+++ b/Wox.Infrastructure/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" requireReinstallation="True" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Wox.Test/Wox.Test.csproj b/Wox.Test/Wox.Test.csproj
index d41a01533e..292d679ec6 100644
--- a/Wox.Test/Wox.Test.csproj
+++ b/Wox.Test/Wox.Test.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Test</RootNamespace>
     <AssemblyName>Wox.Test</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -23,6 +23,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -31,13 +32,16 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Moq">
-      <HintPath>..\packages\Moq.4.2.1409.1722\lib\net35\Moq.dll</HintPath>
+    <Reference Include="Moq, Version=4.2.1409.1722, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Moq.4.2.1409.1722\lib\net40\Moq.dll</HintPath>
     </Reference>
     <Reference Include="nunit.framework">
       <HintPath>..\packages\NUnit.2.6.3\lib\nunit.framework.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
@@ -54,9 +58,6 @@
     <Compile Include="SemanticVersionTest.cs" />
     <Compile Include="UrlPluginTest.cs" />
   </ItemGroup>
-  <ItemGroup>
-    <None Include="packages.config" />
-  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Plugins\Wox.Plugin.Url\Wox.Plugin.Url.csproj">
       <Project>{A3DCCBCA-ACC1-421D-B16E-210896234C26}</Project>
@@ -75,6 +76,9 @@
       <Name>Wox.Plugin</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\nuget.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/Wox.Test/packages.config b/Wox.Test/packages.config
index 821da41519..89b4f35983 100644
--- a/Wox.Test/packages.config
+++ b/Wox.Test/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Moq" version="4.2.1409.1722" targetFramework="net35" requireReinstallation="True" />
-  <package id="NUnit" version="2.6.3" targetFramework="net35" />
+  <package id="Moq" version="4.2.1409.1722" targetFramework="net45" />
+  <package id="NUnit" version="2.6.3" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/Wox/App.config b/Wox/App.config
index fa7610a7c0..7ff378dcf0 100644
--- a/Wox/App.config
+++ b/Wox/App.config
@@ -7,10 +7,10 @@
     <appender name="LogFileAppender" type="log4net.Appender.FileAppender">
       <file type="log4net.Util.PatternString">
         <converter>
-          <name value="WoxLogPathConverter" />
-          <type value="Wox.Helper.WoxLogPathConverter,Wox" />
+          <name value="WoxLogPathConverter"/>
+          <type value="Wox.Helper.WoxLogPathConverter,Wox"/>
         </converter>
-        <conversionPattern value="%WoxLogPathConverter{log}\\log.txt" />
+        <conversionPattern value="%WoxLogPathConverter{log}\\log.txt"/>
       </file>
       <appendToFile value="true"/>
       <rollingStyle value="Date"/>
@@ -21,12 +21,12 @@
     </appender>
     <root>
       <!-- ALL < DEBUG < INFO < WARN < ERROR < FATAL < OFF-->
-      <level value="WARN" />
+      <level value="WARN"/>
       <appender-ref ref="LogFileAppender"/>
     </root>
   </log4net>
   <runtime>
     <!--http://stackoverflow.com/questions/186854/how-to-prevent-an-exception-in-a-background-thread-from-terminating-an-applicati-->
-    <legacyUnhandledExceptionPolicy enabled="1" />
+    <legacyUnhandledExceptionPolicy enabled="1"/>
   </runtime>
-</configuration>
\ No newline at end of file
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
diff --git a/Wox/ImageLoader/ImageLoader.cs b/Wox/ImageLoader/ImageLoader.cs
index 474b47edff..e0f87147e6 100644
--- a/Wox/ImageLoader/ImageLoader.cs
+++ b/Wox/ImageLoader/ImageLoader.cs
@@ -37,16 +37,17 @@ namespace Wox.ImageLoader
 
         private static ImageSource GetIcon(string fileName)
         {
-            if (System.IO.File.Exists(fileName) == false) return null;
-
-            Icon icon = GetFileIcon(fileName);
-            if (icon == null) icon = Icon.ExtractAssociatedIcon(fileName);
-
-            if (icon != null)
+            try
             {
-                return System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(icon.Handle,
-                    new Int32Rect(0, 0, icon.Width, icon.Height), BitmapSizeOptions.FromEmptyOptions());
+                if (File.Exists(fileName) == false) return null;
+                Icon icon = GetFileIcon(fileName) ?? Icon.ExtractAssociatedIcon(fileName);
+                if (icon != null)
+                {
+                    return System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(icon.Handle,
+                        new Int32Rect(0, 0, icon.Width, icon.Height), BitmapSizeOptions.FromEmptyOptions());
+                }
             }
+            catch{}
 
             return null;
         }
diff --git a/Wox/Wox.csproj b/Wox/Wox.csproj
index 034ab2eac4..a996b952f1 100644
--- a/Wox/Wox.csproj
+++ b/Wox/Wox.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox</RootNamespace>
     <AssemblyName>Wox</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <WarningLevel>4</WarningLevel>
@@ -42,6 +42,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <UseVSHostingProcess>true</UseVSHostingProcess>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -51,6 +52,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup>
     <ApplicationIcon>Resources\app.ico</ApplicationIcon>
@@ -66,16 +68,18 @@
     </Reference>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+      <HintPath>..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="NHotkey, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Newtonsoft.Json.6.0.8\lib\net40\Newtonsoft.Json.dll</HintPath>
-    </Reference>
-    <Reference Include="NHotkey">
       <HintPath>..\packages\NHotkey.1.1.0.0\lib\NHotkey.dll</HintPath>
     </Reference>
-    <Reference Include="NHotkey.Wpf">
+    <Reference Include="NHotkey.Wpf, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\NHotkey.Wpf.1.1.0.0\lib\NHotkey.Wpf.dll</HintPath>
     </Reference>
     <Reference Include="PresentationFramework.Classic" />
@@ -99,7 +103,8 @@
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
-    <Reference Include="WindowsInput">
+    <Reference Include="WindowsInput, Version=1.0.4.0, Culture=neutral, PublicKeyToken=9b287f7dc5073cad, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\InputSimulator.1.0.4.0\lib\net20\WindowsInput.dll</HintPath>
     </Reference>
     <Reference Include="WPFToolkit, Version=3.5.40128.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" />
@@ -209,6 +214,7 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <None Include="packages.config" />
     <None Include="Themes\Light.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
@@ -258,9 +264,6 @@
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
     </EmbeddedResource>
     <None Include="App.config" />
-    <None Include="packages.config">
-      <SubType>Designer</SubType>
-    </None>
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
diff --git a/Wox/packages.config b/Wox/packages.config
index 41812a60a8..b46eec7b9c 100644
--- a/Wox/packages.config
+++ b/Wox/packages.config
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="InputSimulator" version="1.0.4.0" targetFramework="net35" />
-  <package id="log4net" version="2.0.3" targetFramework="net35" requireReinstallation="True" />
-  <package id="Newtonsoft.Json" version="6.0.8" targetFramework="net40" />
-  <package id="NHotkey" version="1.1.0.0" targetFramework="net35" />
-  <package id="NHotkey.Wpf" version="1.1.0.0" targetFramework="net35" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net35" />
+  <package id="InputSimulator" version="1.0.4.0" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="NHotkey" version="1.1.0.0" targetFramework="net45" />
+  <package id="NHotkey.Wpf" version="1.1.0.0" targetFramework="net45" />
+  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
 </packages>
\ No newline at end of file