Some background ...
My corporate IT pushed a number of Windows updates to my PC. Some of them weren't installing. Not sure if any of them were related to SQL Server directly. Our IT people had a hard time getting the updates installed. After all this, I was no longer able to open Management Studio. We tried the SQL Server repair utility, but it froze (no progress after letting it run overnight). Now I'm trying to uninstall SSMS so that we could reinstall it, but the removal utility has hung as well. I'm running Windows 7 Enterprise.