HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PreviewBuilds

Disable pre-release features or settings
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PreviewBuilds\EnableConfigFlighting
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PreviewBuilds\EnableExperimentation
Toggle user control over Insider builds
- HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\PreviewBuilds\AllowBuildPreview