|"my pc freaked out and said i have trojan's and virus "|
Your PC will not give you a message like that...your anti-virus will.
You are obviously not too familiar with PC's.
Download these on another PC and put them on a thumb drive or burn them to a CD.
2- tdss killer
Then install them onto the problem PC if you can and run them in that order.
If you can't get on your PC, follow the next steps:
If you are confident enough, you can make a windows 7 recovery disc at:
Make a disc and reboot your PC while tapping f8 and then choose 'repair my computer'
Try that for starters. If you are not comfortable with that you should probably take it into a repair shop.
Some HELP in posting on Computing.net plus free progs and instructions Cheers