Hello, my friend has a pc that has major problems with this virus. I am trying to repair it for them and I tryed reloading the os from the computers back up on the hard drive and it didnt work. It has memory locations it cant access and my norton install atempt failed. I was hoping to fix it with out wiping the drive. I seen there are many posts on this subject but not sure if you need to see the specifics of my pc. Can you help me?