VerifierExt Service Defaults in Windows 8

Driver Verifier Extension by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:VerifierExt
Service name:VerifierExt
Service type:kernel
Error control:normal
Group:WdfLoadGroup
Path:%SystemRoot%\system32\drivers\VerifierExt.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VerifierExt

Default Behavior

The VerifierExt service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If VerifierExt fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the VerifierExt service hasn't been started.

Restore Default Startup Configuration for VerifierExt

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_VerifierExt_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The VerifierExt service is using the VerifierExt.sys file that is located in the %WinDir%\system32\drivers folder. If the file is corrupted or deleted, you can put it back in there.