Windows 8 Services

WMI Performance Adapter - Windows 8 Service

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.

This service also exists in Windows 10, 7, Vista and XP.

Startup Type

Windows 8 edition Windows 8 Windows 8.1 Windows 8.1 Update 1
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Default Properties

Display name:WMI Performance Adapter
Service name:wmiApSrv
Error control:normal

Default Behavior

The WMI Performance Adapter service runs as localSystem in its own process of WmiApSrv.exe. It does not share its process with other services. If WMI Performance Adapter fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the wmiApSrv service has failed to start.

Restore Default Startup Type of WMI Performance Adapter

Automated Restore

1. Select your Windows 8 release and edition, and then click on the Download button below.

2. Save the RestoreWMIPerformanceAdapterWindows8.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.

Note. Make sure that the WmiApSrv.exe file exists in the %WinDir%\system32\wbem folder. If this file is missing you can try to restore it from your Windows 8 installation media.

Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.