Hyper-V Volume Shadow Copy Requestor (vmicvss) Service Defaults in Windows 8

Coordinates the communications that are required to use Volume Shadow Copy Service to back up applications and data on this virtual machine from the operating system on the physical computer.

Default Settings

Startup type: Manual
Display name:Hyper-V Volume Shadow Copy Requestor
Service name:vmicvss
Service type:share
Error control:normal
Path:%SystemRoot%\system32\svchost.exe -k LocalSystemNetworkRestricted
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\vmicvss
  • SeChangeNotifyPrivilege
  • SeBackupPrivilege

Default Behavior

Hyper-V Volume Shadow Copy Requestor is a Win32 service. In Windows 8 it will not be started until the user starts it. When the Hyper-V Volume Shadow Copy Requestor service is started, it runs as LocalSystem in a process of svchost.exe, sharing it with other services. If Hyper-V Volume Shadow Copy Requestor 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 vmicvss service hasn't been started.

Restore Default Startup Configuration of Hyper-V Volume Shadow Copy Requestor

1. Run the Command Prompt as an administrator.

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

sc config vmicvss start= demand

3. Close the command window and restart the computer.

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