FWIW, when I installed KB2762895 yesterday, a number of startup programs apparently failed to initialize on reboot, among them McAfee, iCloud, Secunia and Google Drive. The icons were missing from the tray. When I checked on returning them to the tray by customizing via the Start menu, it...
My Windows Taskbar and Explorer froze upon reboot after "critical" update... Went to Microsoft site, did a Windows Verification Check, tried to download the same update from the Microsoft site and it said it wasn't a valid update for my computer??? How does that happen? Never happened...