Reset WSUS Auth Key on PC's that were mirrorred without running SYSPREP

check_wsus.cmd

@echo off
:: check_wsus.cmd 
::
:: Logon script that checks if workstation token exists in wsus-check$ 
:: If it exists, simply exit, but if not, clears WINDOWSUPDATE registry keys. 

::
::	Last updated by Roy Verrips (roy@verrips.org) on 30th January 2014
::

set wsus-check=\\xxxxxxx-server-name-----\wsus-check$

if %computername%=="" goto :end
if exist %wsus-check%\%computername%.check goto :end

date /t >> %wsus-check%\%computername%.check
time /t >> %wsus-check%\%computername%.check
net stop wuauserv
if not exist C:\windows\system32\reg.exe copy $installpath\reg.exe c:\windows\system32 
REG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v AccountDomainSid /f  >> %wsus-check%\%computername%.check
REG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v PingID /f  >> %wsus-check%\%computername%.check
REG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v SusClientId /f  >> %wsus-check%\%computername%.check
net start wuauserv
wuauclt /resetauthorization /detectnow
goto :end

:end
echo ---------------------------------------------- >> %wsus-check%\machineids.txt
date /t >> %wsus-check%\machineids.txt
time /t >> %wsus-check%\machineids.txt
echo %computername% >> %wsus-check%\machineids.txt

Logon script that checks if workstation token exists in wsus-check$
If it exists, simply exit, but if not, clears WINDOWSUPDATE registry keys and does a reauth