Last time I updated my windows, it became more unstable than ever. It took me months to get it working properly again, and it still doesnt work as well as it used to. MS office now tries to re-install itself whenever I try to open word, excel, or access; but it doesnt need to, I just hit cancel and the program pops up. I let it re-install once and it fixed nothing. Also, my .net frameworks are nearly shot.
I know more than one person who has lost their entire computer due to windows updates. Maybe it was because they both had dells? My computer I built myself.