I have been transferred to the 2nd level of their help centre, there an employee played inside my PC and changed a few codes. we formatted my PC, then reinstalled windows 7 to install W8, but it was unsuccessful, the guy from Microsoft was clueless. I bought a physical copy today and a 36Gb USB Flash Drive and I wait for Microsoft's call.
The guy from Microsoft said: "It's been a while since someone had such a big issue that I couldn't fix it within 5 hours" And really he knew what he was doing...
I CAN'T WAIT TO HAVE W8! I was really close to buy a new PC just to get it! But I need to eat too so...