Mr Kagouris said:
Don't worry, these things happen to everyone. Take me for example, I was replacing my PSU with a full modular one and got stuck for almost half an hour wondering why the system won't turn on then noticed I hadn't plugged part of my 24pin into the PSU (this PSU has 8 of the pins separate). I've never wanted to make a dent in the wall with my head so much.
Well i reinstalled the windows 3x times shame for me