Turn off Program Compatibility Assistant
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Policy overview

Key metadata and intent for this policy.

Computer
Category
Windows Components > Application Compatibility
Supported on
At least Windows Vista

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista

This policy setting controls the state of the Program Compatibility Assistant (PCA). The PCA monitors applications run by the user. When a potential compatibility issue with an application is detected, the PCA will prompt the user with recommended solutions. To configure the diagnostic settings for the PCA, go to System->Troubleshooting and Diagnostics->Application Compatibility Diagnostics. If you enable this policy setting, the PCA will be turned off. The user will not be presented with solutions to known compatibility issues when running applications. Turning off the PCA can be useful for system administrators who require better performance and are already aware of application compatibility issues. If you disable or do not configure this policy setting, the PCA will be turned on. To configure the diagnostic settings for the PCA, go to System->Troubleshooting and Diagnostics->Application Compatibility Diagnostics. Note: The Diagnostic Policy Service (DPS) and Program Compatibility Assistant Service must be running for the PCA to run. These services can be configured by using the Services snap-in to the Microsoft Management Console.

Internal name
AppCompatTurnOffProgramCompatibilityAssistant_2
Policy ID
fd6b8e34eb46
Elements
0

Registry values

How enabled and disabled states update the registry.

ScopeRegistry locationTypeEnabled valueDisabled valueCopy
Computer
Path
Software\Policies\Microsoft\Windows\AppCompat
Value name
DisablePCA
REG_DWORD
HKLM
1
HKLM
0
Registry location
Type REG_DWORD · Computer
Path
Software\Policies\Microsoft\Windows\AppCompat
Value name
DisablePCA
Hive
HKLM
Enabled value
1
Disabled value
0

Policy elements

Inputs and configuration options exposed by this policy.

This policy has no additional user input fields.