Performance Counter DLL Host - Windows 11 Service
Enables remote users and 64-bit processes to query performance counters provided by 32-bit DLLs. If this service is stopped, only local users and 32-bit processes will be able to query performance counters provided by 32-bit DLLs.
This service exists in Windows 11 only.
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: | Performance Counter DLL Host |
| Service name: | PerfHost |
| Type: | own |
| Path: | %WinDir%\SysWow64\perfhost.exe |
| Error control: | normal |
| Object: | NT AUTHORITY\LocalService |
| Privileges: |
|
Default Behavior
The Performance Counter DLL Host service is running as NT AUTHORITY\LocalService in its own process of perfhost.exe. It doesn't share its process with other services. If Performance Counter DLL Host fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the PerfHost service has failed to start.
Dependencies
Performance Counter DLL Host is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.
Restore Default Startup Type for Performance Counter DLL Host
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestorePerformanceCounterDLLHostWindows11.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 perfhost.exe file exists in the %WinDir%\SysWow64 folder. If this file is missing you can try to restore it from your Windows 11 installation media.