Hi everyone! I have a 7/8 years old PC laptop . It runs Windows XP SP3 has 512 mb RAM with Pentium 4 3.06 Ghz processor and it is painfully slow. It has it harddisk running all the time a few minutes after I connect to the internet and it becomes unresponsive for 20, 30+ minutes. I think it might have some sorts of malware in it, but I scanned it with both Macaffee and Microsoft's virus scans and couldn't find anything. It is so old anfd I don't intend to use it much more but I have a couple of questions: 1) If I back some of its disk to an external harddrive, do I have a risk of contaminating the external harddrive with malwares as well? 2) Is there any practical thing that I can do to this machine to make it work as it was a few years ago? Thanks!