Missing WSS Writer for the system state

Hi
I have ran into a remarkable problem regarding the backup of a System State. The thing that was so interesting was that the WSS writer that manages the System State
(System Writer)of a server was missing when I ran the vssadmin list writers cmdlet.

This problem occurs if the NTFS permissions have been removed to the C:\WINDOWS\WINSXS\FILEMAPS directory and / or files.
To resolve this issue run the following command from an administrative CMD
prompt:

Takeown /f %windir%\winsxs\filemaps\* /a
icacls %windir%\winsxs\filemaps\*.* /grant "NT AUTHORITY\SYSTEM:(RX)"
icacls %windir%\winsxs\filemaps\*.* /grant "NT Service\trustedinstaller:(F)"
icacls %windir%\winsxs\filemaps\*.* /grant “BUILTIN\Users:(RX)”

C:\Windows\system32>icacls C:\windows\winsxs\temp\PendingRenames

C:\windows\winsxs\temp\PendingRenames NT SERVICE\TrustedInstaller:(OI)(CI)(F)
BUILTIN\Administrators:(OI)(CI)(RX)
NT AUTHORITY\SYSTEM:(OI)(CI)(RX)
BUILTIN\Users:(OI)(CI)(RX)