Can't boot up computer.

Last week i receiver an email, when I opened it Norton told me that it contained a virus. I let norton delete it. A week later I tried to boot my computer up and couldn't. Windows 2000 would load about 1/2 way then the computer would shut down and start all over again. I've tried to reload windows on the boot up, but still no luck, looks like I'm doomed. Is there a program that I could boot up with that will clean the virus from my computer so windows will run again or do I need to reformat the drive??

thanks

 

you can try booting in safe mode and runnin g anti virus that way

 

sorry but I can't boot up in safe mode

 

Try a repair install overtop or a dos scanner http://www.bitdefender.com/bd/site/products.php?p_id=1#