Enhanced Storage Filter Driver (EhStorClass) Service Defaults in Windows 8

Enhanced Storage Filter Driver.

Default Settings

Startup type:Boot
Display name:Enhanced Storage Filter Driver
Service name:EhStorClass
Service type:kernel
Error control:normal
Group:SCSI Class
Path:%SystemRoot%\System32\drivers\EhStorClass.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EhStorClass

Default Behavior

The Enhanced Storage Filter Driver service is a kernel device driver. In Windows 8 it is being loaded by Boot Loader before Kernel initialization. If Enhanced Storage Filter Driver 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 EhStorClass service hasn't been started.

Restore Default Startup Configuration for Enhanced Storage Filter Driver

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

2. Save the Win8_EhStorClass_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The EhStorClass service is using the EhStorClass.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.