Juhoouuuuuuuu
I'm on the laptop right now and I got it fixed pretty quickly. I owe all of this to you, especially to Blue. Thank you Blue !!! You are the best!!!
I downloaded Rescue Vista or whatever it is called, it was an .iso file. I burned this file to a CD very quickly and then put it in the drive of the laptop and the rest was almost on its own. I just had to click on "continue" "yes" "ok" "finish" and so on. And after the restart it went back to how it used to be.
THANKS VERY MUCH. Win-Tips-Tweaks helped me again, after probably more than 1 year. You're awesome!
Thanks again!!!!