You need to have automatic updates to Windows 10 turned off anyway. There's a bug in the process (not acknowledged by Microsoft as far as I know) where the update process will use 75% of your CPU looking for more updates and not finding any. It doesn't even seem to be accessing the network to look for them.
The only safe way to run Win 10 is to nuke it from orbit.
You need to have automatic updates to Windows 10 turned off anyway. There's a bug in the process (not acknowledged by Microsoft as far as I know) where the update process will use 75% of your CPU looking for more updates and not finding any. It doesn't even seem to be accessing the network to look for them.
The only safe way to run Win 10 is to nuke it from orbit.