batcmd.com Windows 10 Services

Program Compatibility Assistant Service - Windows 10 Service

This service provides support for the Program Compatibility Assistant (PCA). PCA monitors programs installed and run by the user and detects known compatibility problems. If this service is stopped, PCA will not function properly.

This service also exists in Windows 7, 8 and Vista.

Startup Type

Windows 10 version Home Pro Education Enterprise
1507 Manual Manual Manual Manual
1511 Manual Manual Manual Manual
1607 Manual Manual Manual Manual
1703 Manual Manual Manual Manual
1709 Manual Manual Manual Manual

Default Properties

Display name:Program Compatibility Assistant Service
Service name:PcaSvc
Type:share
Path:%WinDir%\system32\svchost.exe -k LocalSystemNetworkRestricted -p
File:%WinDir%\System32\pcasvc.dll
Error control:normal
Object:LocalSystem
Privileges:
  • SeDebugPrivilege
  • SeBackupPrivilege
  • SeRestorePrivilege
  • SeTcbPrivilege
  • SeAssignPrimaryTokenPrivilege

Default Behavior

The Program Compatibility Assistant Service is running as LocalSystem in a shared process of svchost.exe. Other services might run in the same process. If Program Compatibility Assistant Service fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the PcaSvc service has failed to start.

Dependencies

Program Compatibility Assistant Service is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.

Restore Default Startup Type for Program Compatibility Assistant Service

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreProgramCompatibilityAssistantServiceWindows10.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the pcasvc.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 10 installation media.