If you don't have anything useful to reply please keep those snarky comments to yourself.Well that'll be where your problem is - user error!
What you should have done is follow this order
1. Back it up
2. Restore PC
3. Don't bother asking for help b/c you've got a backup
4. Contact the Computer-Awareness tutor and say thank you.
b.t.w. you've forgotten to say what version of the game you have and hence what version of backup you'd like some kind, gullible person to send you ....
As for the version it was : v.94011
If anyone has a save file that would be helpful if not no worries.