Windows Overlay File System Filter Driver (Wof) Service Defaults in Windows 8

Default Settings

Startup type:Boot
Display name:Windows Overlay File System Filter Driver
Service name:Wof
Service type:filesys
Error control:normal
Group:FSFilter Compression
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Wof

Default Behavior

The Windows Overlay File System Filter Driver service is a file system driver. In Windows 8 it is being loaded by Boot Loader before Kernel initialization. If Windows Overlay File System 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 Wof service hasn't been started.

Dependencies

Windows Overlay File System Filter Driver can't start, if the FltMgr service is disabled or not available.

Restore Default Startup Configuration for Windows Overlay File System Filter Driver

Before you begin doing this, make sure that all the services on which Windows Overlay File System Filter Driver depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

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

sc config Wof start= boot
sc start Wof

3. Close the command window and restart the computer.