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Working as a Systems Administrator, I have inherited an environment that is using an old WSUS server 2019. I say old because it looks like there hasn't been any maintenance done on this thing in years. For instance, I tried running the cleanup wizard to remove old updates and flush out old stale items, but it keeps failing with an error message stating, "Error: Database Error". I have more than enough space on the hard drive with 71% free. I even tried going one by one checking off one box at a time, but it still errors out. Even working on common stuff other than the cleanup wizard it will fail.
My question is can I just delete/remove this server completely and start all over and rebuild another one? I know I would need to adjust my GPO to using the new WSUS.
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It depends, it is normally recommended to backup all your data and Group Policy objects and Active Directory data before format and reinstall the server.
WAM can usually take a seemingly messed up WSUS situation and bring it back to life and better than what it was at the beginning (as long as WSUS actually works immediately after a restart of the server).
You can always uninstall/reinstall WSUS
https://www.ajtek.ca/wsus/how-to-remove-wsus-completely-and-reinstall-it/
Or you can migrate it to another server
https://www.ajtek.ca/wsus/how-to-migrate-or-upgrade-wsus/
What does WAM stand for?
WSUS Automated Maintenance©, full disclosure, our product.
WSUS Automated Maintenance. I don't quite understand. Is this something built into Windows server or is it third party?
Third-party (my company). See the website from above.