Volume Shadow Copy (VSS) Service Defaults in Windows 7

Manages and implements Volume Shadow Copies used for backup and other purposes. If this service is stopped, shadow copies will be unavailable for backup and the backup may fail. If this service is disabled, any services that explicitly depend on it will fail to start.

Default Settings

Startup type:Manual
Display name:Volume Shadow Copy
Service name:VSS
Service type:own
Error control:normal
Object:LocalSystem
Path:%SystemRoot%\system32\vssvc.exe
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS

Default Behavior

Volume Shadow Copy is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the Volume Shadow Copy service is started, it is running as LocalSystem in its own process of vssvc.exe. If Volume Shadow Copy fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the VSS service is not running because of the error.

Dependencies

Volume Shadow Copy is unable to start, if the Remote Procedure Call (RPC) service is stopped or disabled.

Restore Default Startup Configuration for Volume Shadow Copy

1. Select your Windows 7 edition and service pack, and then click Download.

2. Save the Win7_VSS_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The VSS service is using the vssvc.exe file that is located in the %WinDir%\system32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.