Why does Windows 7 keep trying to run the same updates?

Episode 1079 (1:00:49)

Lisa from Downey, CA

Lisa is having trouble with her Windows update -- it keeps updating the same files. Leo says that sometimes Windows update fails or gets blocked and it can't get past the failed update. So the updates stack up. It could be that running as a limited user is preventing her from updating. Lisa should log into Windows as an Administrator and then run update. She can also run Microsoft's FixIt utility. She should also just run critical updates, not the optional ones.