diff --git a/.github/actions/spell-check/expect.txt b/.github/actions/spell-check/expect.txt
index 0fca1c9093..ff2b6f0af3 100644
--- a/.github/actions/spell-check/expect.txt
+++ b/.github/actions/spell-check/expect.txt
@@ -672,7 +672,7 @@ GUITHREADINFO
 GValue
 gwl
 GWLP
-haccel
+HACCEL
 hangeul
 hanselman
 hardcoded
diff --git a/src/modules/powerrename/PowerRenameUILib/MainWindow.idl b/src/modules/powerrename/PowerRenameUILib/MainWindow.idl
index c5eeb5756c..7d76457086 100644
--- a/src/modules/powerrename/PowerRenameUILib/MainWindow.idl
+++ b/src/modules/powerrename/PowerRenameUILib/MainWindow.idl
@@ -1,10 +1,9 @@
 import "ExplorerItem.idl";
 import "PatternSnippet.idl";
-import "UIUpdates.idl";
 
 namespace PowerRenameUI
 {
-    [default_interface] runtimeclass MainWindow : Microsoft.UI.Xaml.Window
+    [default_interface] runtimeclass MainWindow : Microsoft.UI.Xaml.Window, Microsoft.UI.Xaml.Data.INotifyPropertyChanged
     {
         MainWindow();
 
@@ -15,13 +14,11 @@ namespace PowerRenameUI
         Windows.Foundation.Collections.IObservableVector<PatternSnippet> SearchRegExShortcuts { get; };
         Windows.Foundation.Collections.IObservableVector<PatternSnippet> DateTimeShortcuts { get; };
 
-        UIUpdates UIUpdatesItem { get; };
+        String OriginalCount;
+        String RenamedCount;
 
         void AddExplorerItem(Int32 id, String original, String renamed, Int32 type, UInt32 depth, Boolean checked);
         void UpdateExplorerItem(Int32 id, String newName);
         void UpdateRenamedExplorerItem(Int32 id, String newOriginalName);
-        void AppendSearchMRU(String value);
-        void AppendReplaceMRU(String value);
-
     }
 }
diff --git a/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml b/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml
index 046a03346f..1406f4582a 100644
--- a/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml
+++ b/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml
@@ -46,7 +46,7 @@
                 <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Grid.Column="2" Margin="6,-2,0,0" >
                     <TextBlock x:Uid="TxtBlock_Original" FontWeight="Medium" />
                     <TextBlock FontWeight="Medium" Margin="4,0,0,0" >
-                        <Run Text="(" /><Run Text="{x:Bind UIUpdatesItem.OriginalCount, Mode=OneWay}" /><Run Text=")" />
+                        <Run Text="(" /><Run Text="{x:Bind OriginalCount, Mode=OneWay}" /><Run Text=")" />
                     </TextBlock>
                 </StackPanel>
             </StackPanel>
@@ -55,7 +55,7 @@
             <StackPanel Orientation="Horizontal" VerticalAlignment="Center" Grid.Column="2" Margin="4,-2,0,0" >
                 <TextBlock x:Uid="TxtBlock_Renamed" FontWeight="Medium" />
                 <TextBlock FontWeight="Medium" Margin="4,0,0,0" >
-                        <Run Text="(" /><Run Text="{x:Bind UIUpdatesItem.RenamedCount, Mode=OneWay}" /><Run Text=")" />
+                        <Run Text="(" /><Run Text="{x:Bind RenamedCount, Mode=OneWay}" /><Run Text=")" />
                 </TextBlock>
             </StackPanel>
 
diff --git a/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.cpp b/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.cpp
index 501d469080..3fe75ea4c9 100644
--- a/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.cpp
+++ b/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.cpp
@@ -29,8 +29,6 @@ using namespace winrt;
 using namespace Windows::UI::Xaml;
 using namespace winrt::Microsoft::Windows::ApplicationModel::Resources;
 
-#define MAX_LOADSTRING 100
-
 // Non-localizable
 const std::wstring PowerRenameUIIco = L"PowerRenameUI.ico";
 const wchar_t c_WindowClass[] = L"PowerRename";
@@ -52,7 +50,7 @@ void handleTheme() {
 namespace winrt::PowerRenameUI::implementation
 {
     MainWindow::MainWindow() :
-        m_instance{ nullptr }, m_allSelected{ true }, m_managerEvents{ this }
+        m_allSelected{ true }, m_managerEvents{ this }
     {
         auto windowNative{ this->try_as<::IWindowNative>() };
         winrt::check_bool(windowNative);
@@ -199,6 +197,36 @@ namespace winrt::PowerRenameUI::implementation
         SearchReplaceChanged();
     }
 
+    winrt::event_token MainWindow::PropertyChanged(Microsoft::UI::Xaml::Data::PropertyChangedEventHandler const& handler)
+    {
+        return m_propertyChanged.add(handler);
+    }
+
+    void MainWindow::PropertyChanged(winrt::event_token const& token) noexcept
+    {
+        m_propertyChanged.remove(token);
+    }
+
+    hstring MainWindow::OriginalCount()
+    {
+        return hstring{ std::to_wstring(m_explorerItems.Size()) };
+    }
+
+    void MainWindow::OriginalCount(hstring)
+    {
+        m_propertyChanged(*this, Microsoft::UI::Xaml::Data::PropertyChangedEventArgs{ L"OriginalCount" });
+    }
+
+    hstring MainWindow::RenamedCount()
+    {
+        return hstring{ std::to_wstring(m_renamingCount) };
+    }
+
+    void MainWindow::RenamedCount(hstring)
+    {
+        m_propertyChanged(*this, Microsoft::UI::Xaml::Data::PropertyChangedEventArgs{ L"RenamedCount" });
+    }
+
     void MainWindow::AddExplorerItem(int32_t id, hstring const& original, hstring const& renamed, int32_t type, uint32_t depth, bool checked)
     {
         auto newItem = winrt::make<PowerRenameUI::implementation::ExplorerItem>(id, original, renamed, type, depth, checked);
@@ -234,16 +262,6 @@ namespace winrt::PowerRenameUI::implementation
         }
     }
 
-    void MainWindow::AppendSearchMRU(hstring const& value)
-    {
-        m_searchMRUList.Append(value);
-    }
-
-    void MainWindow::AppendReplaceMRU(hstring const& value)
-    {
-        m_replaceMRUList.Append(value);
-    }
-
     PowerRenameUI::ExplorerItem MainWindow::FindById(int32_t id)
     {
         return m_explorerItemsMap.contains(id) ? m_explorerItemsMap[id] : NULL;
@@ -418,7 +436,7 @@ namespace winrt::PowerRenameUI::implementation
                 {
                     if (!item.empty())
                     {
-                        AppendSearchMRU(hstring{ item });
+                        m_searchMRUList.Append(item);
                     }
                 }
             }
@@ -432,7 +450,7 @@ namespace winrt::PowerRenameUI::implementation
                     {
                         if (!item.empty())
                         {
-                            AppendReplaceMRU(hstring{ item });
+                            m_replaceMRUList.Append(item);
                         }
                     }
                 }
@@ -950,8 +968,8 @@ namespace winrt::PowerRenameUI::implementation
             button_rename().IsEnabled(renamingCount > 0);
         }
 
-        m_uiUpdatesItem.OriginalCount(std::to_wstring(m_explorerItems.Size()));
-        m_uiUpdatesItem.RenamedCount(std::to_wstring(m_renamingCount));
+        OriginalCount(hstring{ std::to_wstring(m_explorerItems.Size()) });
+        RenamedCount(hstring{ std::to_wstring(m_renamingCount) });
     }
 
     HRESULT MainWindow::OnItemAdded(_In_ IPowerRenameItem* renameItem)
@@ -1016,21 +1034,6 @@ namespace winrt::PowerRenameUI::implementation
         return S_OK;
     }
 
-    HRESULT MainWindow::OnError(_In_ IPowerRenameItem*)
-    {
-        return S_OK;
-    }
-
-    HRESULT MainWindow::OnRegExStarted(_In_ DWORD)
-    {
-        return S_OK;
-    }
-
-    HRESULT MainWindow::OnRegExCanceled(_In_ DWORD)
-    {
-        return S_OK;
-    }
-
     HRESULT MainWindow::OnRegExCompleted(_In_ DWORD)
     {
         _TRACER_;
@@ -1054,11 +1057,6 @@ namespace winrt::PowerRenameUI::implementation
         return S_OK;
     }
 
-    HRESULT MainWindow::OnRenameStarted()
-    {
-        return S_OK;
-    }
-
     HRESULT MainWindow::OnRenameCompleted(bool closeUIWindowAfterRenaming)
     {
         _TRACER_;
diff --git a/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.h b/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.h
index 8e5fc6d2c1..b2c0cb3e56 100644
--- a/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.h
+++ b/src/modules/powerrename/PowerRenameUILib/MainWindow.xaml.h
@@ -80,13 +80,16 @@ namespace winrt::PowerRenameUI::implementation
         winrt::Windows::Foundation::Collections::IObservableVector<PowerRenameUI::ExplorerItem> ExplorerItems() { return m_explorerItems; }
         winrt::Windows::Foundation::Collections::IObservableVector<PowerRenameUI::PatternSnippet> SearchRegExShortcuts() { return m_searchRegExShortcuts; }
         winrt::Windows::Foundation::Collections::IObservableVector<PowerRenameUI::PatternSnippet> DateTimeShortcuts() { return m_dateTimeShortcuts; }
-        PowerRenameUI::UIUpdates UIUpdatesItem() { return m_uiUpdatesItem; }
+        hstring OriginalCount();
+        void OriginalCount(hstring value);
+        hstring RenamedCount();
+        void RenamedCount(hstring value);
+        winrt::event_token PropertyChanged(winrt::Microsoft::UI::Xaml::Data::PropertyChangedEventHandler const& handler);
+        void PropertyChanged(winrt::event_token const& token) noexcept;
 
         void AddExplorerItem(int32_t id, hstring const& original, hstring const& renamed, int32_t type, uint32_t depth, bool checked);
         void UpdateExplorerItem(int32_t id, hstring const& newName);
         void UpdateRenamedExplorerItem(int32_t id, hstring const& newOriginalName);
-        void AppendSearchMRU(hstring const& value);
-        void AppendReplaceMRU(hstring const& value);
 
         void SelectAll(winrt::Windows::Foundation::IInspectable const& sender, winrt::Microsoft::UI::Xaml::RoutedEventArgs const& e);
         void ShowAll(winrt::Windows::Foundation::IInspectable const& sender, winrt::Microsoft::UI::Xaml::RoutedEventArgs const& e);
@@ -94,7 +97,6 @@ namespace winrt::PowerRenameUI::implementation
 
     private:
         bool m_allSelected;
-        PowerRenameUI::UIUpdates m_uiUpdatesItem;
         inline PowerRenameUI::ExplorerItem FindById(int32_t id);
 
         winrt::Windows::Foundation::Collections::IObservableVector<hstring> m_searchMRUList;
@@ -108,11 +110,11 @@ namespace winrt::PowerRenameUI::implementation
         HRESULT OnItemAdded(_In_ IPowerRenameItem* renameItem);
         HRESULT OnUpdate(_In_ IPowerRenameItem* renameItem);
         HRESULT OnRename(_In_ IPowerRenameItem* renameItem);
-        HRESULT OnError(_In_ IPowerRenameItem* renameItem);
-        HRESULT OnRegExStarted(_In_ DWORD threadId);
-        HRESULT OnRegExCanceled(_In_ DWORD threadId);
+        HRESULT OnError(_In_ IPowerRenameItem*) { return S_OK; }
+        HRESULT OnRegExStarted(_In_ DWORD) { return S_OK; }
+        HRESULT OnRegExCanceled(_In_ DWORD) { return S_OK; }
         HRESULT OnRegExCompleted(_In_ DWORD threadId);
-        HRESULT OnRenameStarted();
+        HRESULT OnRenameStarted() { return S_OK; }
         HRESULT OnRenameCompleted(bool closeUIWindowAfterRenaming);
 
         enum class UpdateFlagCommand
@@ -140,14 +142,10 @@ namespace winrt::PowerRenameUI::implementation
         void SetCheckboxesFromFlags(DWORD flags);
         void UpdateCounts();
 
-        wil::unique_haccel m_accelerators;
-        const HINSTANCE m_instance;
-        HWND m_xamlIsland{};
         HWND m_window{};
 
         bool m_disableCountUpdate = false;
         CComPtr<IPowerRenameManager> m_prManager;
-        CComPtr<::IUnknown> m_dataSource;
         CComPtr<IPowerRenameEnum> m_prEnum;
         PowerRenameManagerEvents m_managerEvents;
         DWORD m_cookie = 0;
@@ -155,6 +153,7 @@ namespace winrt::PowerRenameUI::implementation
         CComPtr<IPowerRenameMRU> m_replaceMRU;
         UINT m_selectedCount = 0;
         UINT m_renamingCount = 0;
+        winrt::event<Microsoft::UI::Xaml::Data::PropertyChangedEventHandler> m_propertyChanged;
 
         bool m_flagValidationInProgress = false;
     public:
diff --git a/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj b/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj
index ae48957e96..8c1b35df8c 100644
--- a/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj
+++ b/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj
@@ -100,10 +100,6 @@
     <ClInclude Include="MainWindow.xaml.h">
       <DependentUpon>MainWindow.xaml</DependentUpon>
     </ClInclude>
-    <ClInclude Include="resource.h" />
-    <ClInclude Include="UIUpdates.h">
-      <DependentUpon>UIUpdates.idl</DependentUpon>
-    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml" />
@@ -126,9 +122,6 @@
       <DependentUpon>MainWindow.xaml</DependentUpon>
     </ClCompile>
     <ClCompile Include="$(GeneratedFilesDir)module.g.cpp" />
-    <ClCompile Include="UIUpdates.cpp">
-      <DependentUpon>UIUpdates.idl</DependentUpon>
-    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <Midl Include="App.idl">
@@ -141,7 +134,6 @@
       <DependentUpon>MainWindow.xaml</DependentUpon>
     </Midl>
     <Midl Include="PatternSnippet.idl" />
-    <Midl Include="UIUpdates.idl" />
   </ItemGroup>
   <!-- Defining the "Msix" ProjectCapability here allows the Single-project MSIX Packaging
        Tools extension to be activated for this project even if the Windows App SDK Nuget
diff --git a/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj.filters b/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj.filters
index 39461af03f..b4c557be21 100644
--- a/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj.filters
+++ b/src/modules/powerrename/PowerRenameUILib/PowerRenameUI.vcxproj.filters
@@ -11,7 +11,6 @@
     <Midl Include="MainWindow.idl" />
     <Midl Include="PatternSnippet.idl" />
     <Midl Include="ExplorerItem.idl" />
-    <Midl Include="UIUpdates.idl" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="pch.cpp" />
diff --git a/src/modules/powerrename/PowerRenameUILib/UIUpdates.cpp b/src/modules/powerrename/PowerRenameUILib/UIUpdates.cpp
deleted file mode 100644
index a2481d2bea..0000000000
--- a/src/modules/powerrename/PowerRenameUILib/UIUpdates.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-#include "pch.h"
-#include "UIUpdates.h"
-#include "UIUpdates.g.cpp"
-
-namespace winrt::PowerRenameUI::implementation
-{
-    UIUpdates::UIUpdates()
-    {
-    }
-
-    winrt::event_token UIUpdates::PropertyChanged(Microsoft::UI::Xaml::Data::PropertyChangedEventHandler const& handler)
-    {
-        return m_propertyChanged.add(handler);
-    }
-
-    void UIUpdates::PropertyChanged(winrt::event_token const& token) noexcept
-    {
-        m_propertyChanged.remove(token);
-    }
-
-    hstring UIUpdates::OriginalCount()
-    {
-        return m_originalCount;
-    }
-
-    void UIUpdates::OriginalCount(hstring value)
-    {
-        if (m_originalCount != value)
-        {
-            m_originalCount = value;
-            m_propertyChanged(*this, Microsoft::UI::Xaml::Data::PropertyChangedEventArgs{ L"OriginalCount" });
-        }
-    }
-
-    hstring UIUpdates::RenamedCount()
-    {
-        return m_renamedCount;
-    }
-
-    void UIUpdates::RenamedCount(hstring value)
-    {
-        if (m_renamedCount != value)
-        {
-            m_renamedCount = value;
-            m_propertyChanged(*this, Microsoft::UI::Xaml::Data::PropertyChangedEventArgs{ L"RenamedCount" });
-        }
-    }
-}
diff --git a/src/modules/powerrename/PowerRenameUILib/UIUpdates.h b/src/modules/powerrename/PowerRenameUILib/UIUpdates.h
deleted file mode 100644
index 0b314d42e9..0000000000
--- a/src/modules/powerrename/PowerRenameUILib/UIUpdates.h
+++ /dev/null
@@ -1,28 +0,0 @@
-#pragma once
-#include "UIUpdates.g.h"
-
-namespace winrt::PowerRenameUI::implementation
-{
-    struct UIUpdates : UIUpdatesT<UIUpdates>
-    {
-        UIUpdates();
-
-        winrt::event_token PropertyChanged(winrt::Microsoft::UI::Xaml::Data::PropertyChangedEventHandler const& handler);
-        void PropertyChanged(winrt::event_token const& token) noexcept;
-        hstring OriginalCount();
-        void OriginalCount(hstring value);
-        hstring RenamedCount();
-        void RenamedCount(hstring value);
-
-    private:
-        hstring m_originalCount;
-        hstring m_renamedCount;
-        winrt::event<Microsoft::UI::Xaml::Data::PropertyChangedEventHandler> m_propertyChanged;
-    };
-}
-namespace winrt::PowerRenameUI::factory_implementation
-{
-    struct UIUpdates : UIUpdatesT<UIUpdates, implementation::UIUpdates>
-    {
-    };
-}
diff --git a/src/modules/powerrename/PowerRenameUILib/UIUpdates.idl b/src/modules/powerrename/PowerRenameUILib/UIUpdates.idl
deleted file mode 100644
index 93756901fd..0000000000
--- a/src/modules/powerrename/PowerRenameUILib/UIUpdates.idl
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace PowerRenameUI
-{
-    runtimeclass UIUpdates : Microsoft.UI.Xaml.Data.INotifyPropertyChanged
-    {
-        UIUpdates();
-        String OriginalCount;
-        String RenamedCount;
-    }
-}