If it were me. I would bring up system restore and see if you can go back to the last one that installed. (11/12/09) that was an optional
update. (I only install Important and recommended)
Then not install that one and see if you can get others to install.
thats what I would try.
good luck in whatever you do.
PS: to install them again try. start > windows update > check for updates.
Edited by keny111111, 11 December 2009 - 08:02 PM.