Policy
Allow Microsoft Compatibility List
Windows 11 25H2
Policy overview
Key metadata and intent for this policy.
Supported OS tags: Windows10
This policy setting lets you decide whether to use the Microsoft Compatibility List (a Microsoft-provided list that helps sites with known compatibility issues to display properly) in Microsoft Edge. By default, the Microsoft Compatibility List is enabled and can be viewed by visiting about:compat. If you enable or don’t configure this setting, Microsoft Edge periodically downloads the latest version of the list from Microsoft, applying the updates during browser navigation. Visiting any site on the Microsoft Compatibility List prompts the employee to use Internet Explorer 11, where the site is automatically rendered as though it’s in whatever version of IE is necessary for it to appear properly. If you disable this setting, the Microsoft Compatibility List isn’t used during browser navigation.
Registry values
How enabled and disabled states update the registry.
| Registry location | Type | Enabled value | Disabled value |
|---|---|---|---|
| HKLM\Software\Policies\Microsoft\MicrosoftEdge\BrowserEmulation\MSCompatibilityMode | REG_DWORD | 1 | 0 |
Policy elements
Inputs and configuration options exposed by this policy.
This policy has no additional user input fields.
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