system
20
Are you sure that all symantec antivirus is all off?. They have a removal tool to get rid of it.
Try the avast un instal utility/ reboot and re instal avast.
Have you tested the computer with a anti spyware (malware bytes free) i use.
How much ram is installed??
256mb ram or greater is required to run xp efectively & how much hard drive space is availible on your hard drive? for the swap file sys.