chore: import upstream snapshot with attribution

doc/dsc/modules/EnvironmentVariables.md

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+---
+description: DSC configuration reference for PowerToys EnvironmentVariables module
+ms.date:     10/18/2025
+ms.topic:    reference
+title:       EnvironmentVariables Module
+---
+
+# EnvironmentVariables Module
+
+## Synopsis
+
+Manages configuration for the Environment Variables utility, a quick editor for system and user environment variables.
+
+## Description
+
+The `EnvironmentVariables` module configures PowerToys Environment Variables, a utility that provides an enhanced interface for viewing and editing Windows environment variables. It offers a more user-friendly alternative to the standard Windows environment variable editor.
+
+## Properties
+
+The EnvironmentVariables module supports the following configurable properties:
+
+### LaunchAdministrator
+
+Controls whether the Environment Variables editor launches with administrator privileges by default.
+
+**Type:** boolean  
+**Default:** `false`  
+**Description:** When enabled, the editor will always attempt to launch with elevated permissions, allowing editing of system-wide environment variables.
+
+## Examples
+
+### Example 1 - Enable admin launch with direct execution
+
+This example configures the Environment Variables editor to always launch with admin rights.
+
+```powershell
+$config = @{
+    settings = @{
+        properties = @{
+            LaunchAdministrator = $true
+        }
+        name = "EnvironmentVariables"
+        version = "1.0"
+    }
+} | ConvertTo-Json -Depth 10 -Compress
+
+PowerToys.DSC.exe set --resource 'settings' --module EnvironmentVariables --input $config
+```
+
+### Example 2 - Configure with DSC
+
+This example enables administrator launch through DSC configuration.
+
+```bash
+dsc config set --file environmentvariables-config.dsc.yaml
+```
+
+```yaml
+# environmentvariables-config.dsc.yaml
+$schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
+resources:
+  - name: Configure Environment Variables editor
+    type: Microsoft.PowerToys/EnvironmentVariablesSettings
+    properties:
+      settings:
+        properties:
+          LaunchAdministrator: true
+        name: EnvironmentVariables
+        version: 1.0
+```
+
+### Example 3 - Install and configure with WinGet
+
+This example installs PowerToys and configures Environment Variables for
+admin launch.
+
+```bash
+winget configure winget-envvars.yaml
+```
+
+```yaml
+# winget-envvars.yaml
+$schema: https://raw.githubusercontent.com/PowerShell/DSC/main/schemas/2023/08/config/document.json
+metadata:
+  winget:
+    processor: dscv3
+resources:
+  - name: Install PowerToys
+    type: Microsoft.WinGet.DSC/WinGetPackage
+    properties:
+      id: Microsoft.PowerToys
+      source: winget
+  
+  - name: Configure Environment Variables
+    type: Microsoft.PowerToys/EnvironmentVariablesSettings
+    properties:
+      settings:
+        properties:
+          LaunchAdministrator: true
+        name: EnvironmentVariables
+        version: 1.0
+```
+
+### Example 4 - Standard user mode
+
+This example configures for standard user access (no elevation).
+
+```bash
+dsc config set --file envvars-user.dsc.yaml
+```
+
+```yaml
+# envvars-user.dsc.yaml
+$schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
+resources:
+  - name: User-level Environment Variables
+    type: Microsoft.PowerToys/EnvironmentVariablesSettings
+    properties:
+      settings:
+        properties:
+          LaunchAdministrator: false
+        name: EnvironmentVariables
+        version: 1.0
+```
+
+### Example 5 - Test admin launch configuration
+
+This example tests whether admin launch is enabled.
+
+```powershell
+$desired = @{
+    settings = @{
+        properties = @{
+            LaunchAdministrator = $true
+        }
+        name = "EnvironmentVariables"
+        version = "1.0"
+    }
+} | ConvertTo-Json -Depth 10 -Compress
+
+$result = PowerToys.DSC.exe test --resource 'settings' --module EnvironmentVariables --input $desired | ConvertFrom-Json
+
+if ($result._inDesiredState) {
+    Write-Host "Admin launch is enabled"
+}
+```
+
+## Use cases
+
+### System administration
+
+Configure for system-wide environment variable management:
+
+```yaml
+resources:
+  - name: Admin configuration
+    type: Microsoft.PowerToys/EnvironmentVariablesSettings
+    properties:
+      settings:
+        properties:
+          LaunchAdministrator: true
+        name: EnvironmentVariables
+        version: 1.0
+```
+
+### Development workstations
+
+Configure for user-level variable management:
+
+```yaml
+resources:
+  - name: Developer configuration
+    type: Microsoft.PowerToys/EnvironmentVariablesSettings
+    properties:
+      settings:
+        properties:
+          LaunchAdministrator: false
+        name: EnvironmentVariables
+        version: 1.0
+```
+
+## See also
+
+- [Settings Resource][01]
+- [PowerToys DSC Overview][02]
+- [Hosts][03]
+- [PowerToys Environment Variables Documentation][04]
+
+<!-- Link reference definitions -->
+[01]: ../settings-resource.md
+[02]: ../overview.md
+[03]: ./Hosts.md
+[04]: https://learn.microsoft.com/windows/powertoys/environment-variables