Diagnostic Execution Service - Windows 11 Service
Executes diagnostic actions for troubleshooting support.
This service also exists in Windows 10.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
| 23H2 | Manual | Manual | Manual | Manual |
| 24H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | Diagnostic Execution Service |
| Service name: | diagsvc |
| Type: | share |
| Path: | %WinDir%\System32\svchost.exe -k diagnostics |
| File: | %WinDir%\system32\DiagSvc.dll |
| Error control: | normal |
| Object: | LocalSystem |
| Privileges: |
|
Default Behavior
The Diagnostic Execution Service is running as LocalSystem in a shared process of svchost.exe. Other services might run in the same process. If Diagnostic Execution Service fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the diagsvc service has failed to start.
Dependencies
Diagnostic Execution Service is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.
Restore Default Startup Type for Diagnostic Execution Service
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreDiagnosticExecutionServiceWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the DiagSvc.dll file exists in the %WinDir%\system32 folder. If this file is missing you can try to restore it from your Windows 11 installation media.