diff --git a/.github/actions/spell-check/expect.txt b/.github/actions/spell-check/expect.txt
index 064e9ec94b..8ae7b6efff 100644
--- a/.github/actions/spell-check/expect.txt
+++ b/.github/actions/spell-check/expect.txt
@@ -197,6 +197,7 @@ Canvascustomlayout
 CAPTUREBLT
 CAPTURECHANGED
 CARETBLINKING
+carlos
 Carlseibert
 CAtl
 caub
@@ -217,6 +218,7 @@ certmgr
 cfp
 CHANGECBCHAIN
 changecursor
+chatasweetie
 checkmarks
 CHILDACTIVATE
 CHILDWINDOW
@@ -2242,6 +2244,7 @@ YSpeed
 YStr
 YTimer
 YVIRTUALSCREEN
+zamora
 ZEROINIT
 zonability
 zonable
diff --git a/doc/devdocs/events.md b/doc/devdocs/events.md
new file mode 100644
index 0000000000..1bc2d5bba6
--- /dev/null
+++ b/doc/devdocs/events.md
@@ -0,0 +1,197 @@
+# Telemetry Events
+
+PowerToys collects limited telemetry to understand feature usage, reliability, and product quality. When adding a new telemetry event, follow the steps below to ensure the event is properly declared, documented, and available after release.
+
+**⚠️ Important**: Telemetry must never include personal information, file paths, or user‑generated content.
+
+## Developer Effort Overview (What to Expect)
+
+Adding a telemetry event is a **multi-step process** that typically spans several areas of the codebase and documentation.
+
+At a high level, developers should expect to:
+
+1. Within one PR:
+    1. Add a new telemetry event(s) to module
+    1. Add the new event(s) DATA_AND_PRIVACY.md
+1. Reach out to @carlos-zamora or @chatasweetie so internal scripts can process new event(s)
+
+### Privacy Guidelines
+
+**NEVER** log:
+
+- User data (text, files, emails, etc.)
+- File paths or filenames
+- Personal information
+- Sensitive system information
+- Anything that could identify a specific user
+
+DO log:
+
+- Feature usage (which features, how often)
+- Success/failure status
+- Timing/performance metrics
+- Error types (not error messages with user data)
+- Aggregate counts
+
+### Event Naming Convention
+
+Follow this pattern: `UtilityName_EventDescription`
+
+Examples:
+
+- `ColorPicker_Session`
+- `FancyZones_LayoutApplied`
+- `PowerRename_Rename`
+- `AdvancedPaste_FormatClicked`
+- `CmdPal_ExtensionInvoked`
+
+## Adding Telemetry Events to PowerToys
+
+PowerToys uses ETW (Event Tracing for Windows) for telemetry in both C++ and C# modules. The telemetry system is:
+
+- Opt-in by default (disabled since v0.86)
+- Privacy-focused - never logs personal info, file paths, or user-generated content
+- Controlled by registry - HKEY_CURRENT_USER\Software\Classes\PowerToys\AllowDataDiagnostics
+
+### C++ Telemetry Implementation
+
+**Core Components**
+
+| File  | Purpose |
+| ------------- |:-------------:|
+| [ProjectTelemetry.h](../../src/common/Telemetry/ProjectTelemetry.h)    | Declares the global ETW provider g_hProvider     |
+| [TraceBase.h](../../src/common/Telemetry/TraceBase.h)      | Base class with RegisterProvider(), UnregisterProvider(), and IsDataDiagnosticsEnabled() check     |
+| [TraceLoggingDefines.h](../../src/common/Telemetry/TraceLoggingDefines.h)      | Privacy tags and telemetry option group macros
+
+
+#### Pattern for C++ Modules
+
+1. Create a `Trace` class inheriting from `telemetry::TraceBase` (src/common/Telemetry/TraceBase.h):
+
+    ```c
+    // trace.h
+    #pragma once
+    #include <common/Telemetry/TraceBase.h>
+    
+    class Trace : public telemetry::TraceBase
+    {
+    public:
+        static void MyEvent(/* parameters */);
+    };
+    ```
+
+2. Implement events using `TraceLoggingWriteWrapper`:
+
+    ```cpp
+    // trace.cpp
+    #include "trace.h"
+    #include <common/Telemetry/TraceBase.h>
+    
+    TRACELOGGING_DEFINE_PROVIDER(
+        g_hProvider,
+        "Microsoft.PowerToys",
+        (0x38e8889b, 0x9731, 0x53f5, 0xe9, 0x01, 0xe8, 0xa7, 0xc1, 0x75, 0x30, 0x74),
+        TraceLoggingOptionProjectTelemetry());
+    
+    void Trace::MyEvent(bool enabled)
+    {
+        TraceLoggingWriteWrapper(
+            g_hProvider,
+            "ModuleName_EventName",           // Event name
+            TraceLoggingBoolean(enabled, "Enabled"),  // Event data
+            ProjectTelemetryPrivacyDataTag(ProjectTelemetryTag_ProductAndServicePerformance),
+            TraceLoggingBoolean(TRUE, "UTCReplace_AppSessionGuid"),
+            TraceLoggingKeyword(PROJECT_KEYWORD_MEASURE));
+    }
+    ```
+
+**Key C++ Telemetry Macros**
+
+| Macro  | Purpose |
+| ------------- |:-------------:|
+| `TraceLoggingWriteWrapper` [CustomAction.cpp](../../installer/PowerToysSetupCustomActionsVNext/CustomAction.cpp)     | Wraps `TraceLoggingWrite` with `IsDataDiagnosticsEnabled()` check     |
+| `ProjectTelemetryPrivacyDataTag(tag)` [TraceLoggingDefines.h](../../src/common/Telemetry/TraceLoggingDefines.h)     | Sets privacy classification |
+
+### C# Telemetry Implementation
+
+**Core Components**
+
+| File  | Purpose |
+| ------------- |:-------------:|
+| [PowerToysTelemetry.cs](../../src/common/ManagedTelemetry/Telemetry/PowerToysTelemetry.cs)    | Singleton `Log` instance with `WriteEvent<T>()` method     |
+| [EventBase.cs](../../src/common/ManagedTelemetry/Telemetry/Events/EventBase.cs)      | Base class for all events (provides `EventName`, `Version`)     |
+| [IEvent.cs](../../src/common/ManagedTelemetry/Telemetry/Events/IEvent.cs)     | Interface requiring `PartA_PrivTags` property     |
+| [TelemetryBase.cs](../../src/common/Telemetry/TelemetryBase.cs)     | 	Inherits from `EventSource`, defines ETW constants     |
+| [DataDiagnosticsSettings.cs](../../src/common/ManagedTelemetry/Telemetry/DataDiagnosticsSettings.cs)     | Registry-based enable/disable check 
+
+#### Pattern for C# Modules
+
+1. Create an event class inheriting from `EventBase` and implementing `IEvent`:
+
+    ```csharp
+    using System.Diagnostics.CodeAnalysis;
+    using System.Diagnostics.Tracing;
+    using Microsoft.PowerToys.Telemetry;
+    using Microsoft.PowerToys.Telemetry.Events;
+    
+    namespace MyModule.Telemetry
+    {
+        [EventData]
+        [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicProperties)]
+        public class MyModuleEvent : EventBase, IEvent
+        {
+            // Event properties (logged as telemetry data)
+            public string SomeProperty { get; set; }
+            public int SomeValue { get; set; }
+    
+            // Required: Privacy tag
+            public PartA_PrivTags PartA_PrivTags => PartA_PrivTags.ProductAndServiceUsage;
+    
+            // Optional: Set EventName in constructor (defaults to class name)
+            public MyModuleEvent(string prop, int val)
+            {
+                EventName = "MyModule_EventName";
+                SomeProperty = prop;
+                SomeValue = val;
+            }
+        }
+    }
+    ```
+
+2. Log the event:
+
+```csharp
+PowerToysTelemetry.Log.WriteEvent(new MyModuleEvent("value", 42));
+```
+
+**Privacy Tags (C#)**
+
+| Tag  | Use Case |
+| ------------- |:-------------:|
+| `PartA_PrivTags.ProductAndServiceUsage`  [TelemetryBase.cs](../../src/common/Telemetry/TelemetryBase.cs)     | Feature usage events
+| `PartA_PrivTags.ProductAndServicePerformance` [TelemetryBase.cs](../../src/common/Telemetry/TelemetryBase.cs)     | Performance/timing events
+  
+### Update DATA_AND_PRIVACY.md file
+
+Add your new event(s) to [DATA_AND_PRIVACY.md](../../DATA_AND_PRIVACY.md).
+
+## Launch Product Version Containing the new events
+
+Events do not become active until they ship in a released PowerToys version. After your PRs are merged:
+
+- The event will begin firing once users install the version that includes it
+- In order for PowerToys to process these events, you must complete the next section
+
+## Next Steps
+
+Reach out to @carlos-zamora or @chatasweetie so internal scripts can process new event(s).
+
+## Summary
+
+Required steps:
+
+1. In one PR:
+    - Add the event(s) in code
+    - Document event(s) in DATA_AND_PRIVACY.md
+1. Ship the change in a PowerToys release
+1. Reach out for next steps