WSUS | Hint for cloned machines.

Do sysprep.exe, but you will lose activation, licenses, maybe devices. The poor mans way: Remove the SusClientID and (if exists) AccountDomainID from Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate

WSUS CLEANUP via Powershell

$WSUS = Get-WsusServer -Name SERVERNAME -PortNumber 8530Invoke-WsusServerCleanup -UpdateServer $WSUS -CleanupObsoleteComputers -VerboseInvoke-WsusServerCleanup -UpdateServer $WSUS -CleanupObsoleteUpdates -VerboseInvoke-WsusServerCleanup -UpdateServer $WSUS -CleanupUnneededContentFiles -VerboseInvoke-WsusServerCleanup -UpdateServer $WSUS -DeclineExpiredUpdates -VerboseInvoke-WsusServerCleanup -UpdateServer $WSUS -DeclineSupersededUpdates -Verbose

GPO | Create a scheduled task

Create the task on a computer. Set the executional principal to ‘NT AUTHORITY\SYSTEM’. Type the string directly or search for ‘SYSTEM’ in the computers local branch. Test it locally. Export the Task as xml. Copy the xml to an accessable network share. Create a powershell script to install the task out of this xml. Example […]

WSUS | Client error 0x80070643

Maybe a problem with Microsoft Defender signature update. Goto WSUS console and check the what patches were approved last week. If you’re lucky, the corpus delicti shows an error. Otherwise check the patch statistics of a client machine, check machines report in WSUS. Revoke the problematic one. It it doesn’t help, try this: %PROGRAMFILES%\Windows Defender\MPCMDRUN.exe” […]

WSUS | ERROR 8024401f

Seems your WSUS has a problem. Maybe the database or the IIS did crash. Check your servers firewall. Restart your Server. If it doesnt help, try this: Check the log: C:\Windows\WID\Log\error.log Try this: “C:\Program Files\Update Services\Tools\wsusutil.exe” postinstall /servicing Or this: Activate and install „HTTP Activation“ @ „WCF Services“ on „.NET Framework 4.5 Features“.

WSUS IIS APPLICATION POOL shuts down

Select the Application Pool Name and then click ‘Advanced Settings’.Do some changes: Private Memory Limit (KB): 1843200 to 4194304 Queue Length: 1000 to 25000 Limit Interval (minutes): 5 to 15 ‘Service Unavailable’ Response: HttpLevel to TcpLevel Then stop the IIS (IIS-Manager or ‘net stop w3srv’), edit the web.config ( C:\Program Files\Update Services\WebServices\ClientWebService\web.config ) for WSUS:Replace […]