New
#11
Better let it run overnight or longer to see if it proceeds or rolls back. To interrupt it can risk data loss. Hopefully you backed up your files first.
If it fails then you do a booted Clean Reinstall - Factory OEM Windows 7 to get a superior install to the factory preinstall - which most tech enthusiasts won't even run due to the corruption caused by the sponsors' crapware and useless factory utiltiies which duplicate better ones in Win7.