By the way, where can I find a logout-button in sevenforums?
So you just uninstalled the KB from Windows? I did create a restore point prior to installing it.After installing the critical update my computer became unusable. It froze immediately after startup, and I spent the day trying to resolve the problem without success. I was ready to wipe Windows and reinstall ( a two-three day process) when I remembered the update, removed it, and all is back to normal. Perhaps the update was released without thorough testing.