Clients Not Showing Up In WSUS

We’re using VMWare templates for deploying servers. Despite using sysprep to remove all unique machine identifiers we get an issue where there is a duplicate SUSClientID. In this case the cloned machines have the same SUSClientID and cannot be uniquely identified by WSUS. The solution to this is to create and run the following batch file:

Rem - Batch script to delete duplicate SusClientIDs 
Rem - Implement this script as a "Startup" or "Logon"  script 
Rem - Script creates an output file called %Systemdrive%\SUSClientID.log 
Rem - If the %Systemdrive%\SUSClientID.log is already present, then the script simply exits 

@Echo off 
if exist %systemdrive%\SUSClientID.log goto end 
net stop wuauserv 
net stop bits 
reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v PingID /f  > %systemdrive%\SUSClientID.log 2>&1 
reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v AccountDomainSid /f  >> %systemdrive%\SUSClientID.log 2>&1 
reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate" /v SusClientId /f  >> %systemdrive%\SUSClientID.log 2>&1 
net start wuauserv 
wuauclt.exe /resetauthorization /detectnow          
:end 
exit