Rococo

I'm in a HUUUGE fucking mess tonight. My system was acting buggy yesterday and today after i installed a new dvd burner.

Today after a reset, it prompted me to start with last known good configuration and I chose yes.

now everything is totally fucked.

the windows start menu no longer exists it will not show up even in safe mode, some programs will not start others still work.

Is there any way that I can go back to the settings before i chose last known config?????

Any advice will be greatly appreciated!!!!!!