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
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 of Enhanced Storage Filter Driver

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config EhStorClass start= boot
sc start EhStorClass

3. Close the command window and restart the computer.

The EhStorClass service is using the EhStorClass.sys file that is located in the C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 8 installation media.