I think this happened after 20H2 update. Windows Update and Windows Update Medic services are automatically disabled. I cannot even change the status into automatically or manual and start the service manually. If I change the status into something else (automatically or manual from disabled), after refreshing the services list it shows disabled again. Screenshots are attached below.
I had this issue in updates section in settings app. That's why I checked in services,
sfc /scannow
, let that complete then rundism /online /cleanup-image /restorehealth
, now reboot and see if the services start automatically or allow you to change to do so.