stub zones and conditional forwarders

https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc780434(v=ws.10)?redirectedfrom=MSDN

Fix Windows Update errors by using the DISM or System Update Readiness tool

https://docs.microsoft.com/en-us/troubleshoot/windows-server/deployment/fix-windows-update-errors#what-does-the-system-update-readiness-tool-do

Fixing a bit of pending.xml

Fix errors found in the CheckSUR.log

https://docs.microsoft.com/en-us/troubleshoot/windows-client/deployment/errors-in-checksur-log

https://www.dell.com/support/kbdoc/en-in/000134962/how-to-repair-windows-update-issues-with-the-sur-system-update-readiness-tool

catalog path

https://www.catalog.update.microsoft.com/Search.aspx?q=System%20Update%20Readiness%20Tool