Is this the Cumulative update from mid November ?
If so, the damn thing has tried to update several times so far, only to complain it "couldn't complete the update" and then "restoring to previous setting", or something like that anyhow. Phaffed around for a couple of hours last night trying to either stop it attempting to install or successfully install it and gave up. Got a PC with a boot time of about 10 minutes as a result at present.
If I could get the missus's "Work from Home" to work on the playing-around-with-Linux box upstairs, then this (the main PC) would go the same way ... my Work from Home works on it and the bits of Office 2010 we use too, so I don't think I'd miss much.