WMI Performance Adapter (wmiApSrv) Service Defaults in Windows 10

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 10 it is starting only if the user, an application or another service starts it. When the WMI Performance Adapter service is started, it is running as localSystem in its own process of WmiApSrv.exe. If WMI Performance Adapter fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the wmiApSrv service has failed to start due to the error.

Restore Default Startup Configuration for 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 %WinDir%\system32\wbem folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.