Vostro 220 windows xp freezes randomly

[Guest]

Running Windows XP on a one year old Vostro 220. Problem seems to have started after I replaced McAffee with Norton 360 per Comcast's changeover. I have since uninstalled Norton but the problem persists. Ran PSA which showed no hardware or memory problems. I believe Norton must have changed some of the registry values. I am running Norton on my laptop with Windows 7 but that is not a problem. No freezes. Help.

 

[aford10]

First use revo uninstaller to make sure you got rid of all the Norton software.
http://www.revouninstaller.com/

Then use ccleaner to scan the registry for errors.
http://www.ccleaner.com/

Use memtest to test your RAM. It's really the best software to do so.
http://www.memtest86.com/

Any errors logged in the event viewer?