VSS Error. Faulting Application vssvc.exe (code 1717)

Situation

An image-based backup plan terminates with the following error: VSS Error. Faulting application vssvc.exe

Cause

Probably, the relevent registry key is broken.

Solution

  1. Run regedit.
  2. Locate and then click the following registry key: HKEYLOCALMACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems:

  1. Modify the key value from the current one:
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=1

to the new one:

%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,1024 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=1
  1. Close regedit, then run the backup plan again.