Turn off Program Compatibility Assistant

Supported on: At least Windows Vista

Registry

HKCU Software\Policies\Microsoft\Windows\AppCompat

Value name: DisablePCA

Enabled: DisablePCA = 1

Disabled: DisablePCA = 0

Description

This setting exists only for backward compatibility, and is not valid for this version of Windows. To configure the Program Compatibility Assistant, use the 'Turn off Program Compatibility Assistant' setting under Computer Configuration\Administrative Templates\Windows Components\Application Compatibility.