Hello I have just removed much malware and viruses from a computer with windows vista. It is still running slow from time to time, having problems with freezing on the internet and I thought maybe by defragging it would fix the issue. Yes I have reset firefox many times, scanned many times fully for viruses and malware, removed and reinstalled flash player, etc. I need to first backup the C drive only because the D drive is full of crap. I cannot afford to do anything other than DVD-R to store it on. I am trying to find out how to do this. Is anyone familiar with such a process?