WMI Performance Adapter (wmiApSrv) Service Defaults in Windows 11
Provides performance library information from Windows Management Instrumentation (WMI) providers to clients on the network. This service only runs when Performance Data Helper is activated.
Default Settings
| Startup type: | Manual |
| Display name: | WMI Performance Adapter |
| Service name: | wmiApSrv |
| Service type: | own |
| Error control: | normal |
| Object: | localSystem |
| Path: | %SystemRoot%\system32\wbem\WmiApSrv.exe |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wmiApSrv |
Default Behavior
WMI Performance Adapter is a Win32 service. In Windows 11 it starts only if the user, an application or another service starts it. When the WMI Performance Adapter service is started, it logs on as localSystem and running in its own process of WmiApSrv.exe. If WMI Performance Adapter fails to start, the failure details will be recorded into Event Log. Then Windows 11 should boot up and notify the user about the wmiApSrv service startup failure.
Restore Default Startup Configuration of WMI Performance Adapter
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config wmiApSrv start= demand
3. Close the command window and restart the computer.
The wmiApSrv service is using the WmiApSrv.exe file that is located in the C:\Windows\system32\wbem directory. If the file is removed or corrupted, read this article to restore its original version from Windows 11 installation media.