Safezone causes BSOD? Help me.

Yesterday the safezone started to open about every 15~20 minutes, I didn’t even know that it had in avast. It was dificult to close, and took a long time everytime it opened, and i don’t remember enabling this safezone. At afternoon I was so angry of waiting, it has freezed the notebook system, stayed pause for some minutes and I pressed the Power Buttom to force it to power off, when I tried to turn on, it showed a BSOD and windows doesn’t start anymore, I can’t format the system right now because i have some files in C:, and i think that might be an easier way to solve.
I tried recover the system but unfortunately there’s no restorating points. The auto recover tries to solve but can’t. Now I’ll try to restore by windows 7 DVD when I get home, I don’t want to format, I don’t have original windows 7 dvd, and my system is original but i don’t know the serial…
Anyone had a problem like this? Thanks, sorry for bad english.

Note: The windows starts in the security mode.
Note2: I’ve tried this, but no success: http://imageshack.us/photo/my-images/845/foto0730p.jpg/
Note3: Screenshot of BSOD: http://imageshack.us/photo/my-images/40/foto0729d.jpg/

Anyone can help me? :-\