Depending on what the problem is that you say is wrong with the pc why cant you just transfer the whole hard drive to a new pc, This way your taking everything with you and all will be in tact, unless of course its the hard drive thats failing . As long as your backed up i suppose your all good as well.
I browsed the answers and I find this is the best and easiest. I am more of technical in hardware than software and I am new in bitcoin. But PC related he didn't mention that it was the Hard Disk that was failing. It was the PC itself and there is a big chance the other parts are the ones infected.
Try the answer from helloeverybody first.