I had a friend give me his Dell Insiron B130 laptop because it would not load windows xp (sp2) just the blue screen with the following error message Page_Fault_In_Nonpaged_Area_ then at the bottom it has Stop: 0x00000050 (0xf89ca000,0x00000000,0xE21cd46ad,0x00000000) I tried to use his system restore but that didn't work. I can boot in safe mode and tried there but according to the system his only restore point was set after this error occurred. I have read that it can be caused by a number of things, from ram failure to other hardware failure to a virus that does it. Also that certain programs will do it too. He hasn't installed any new software or hardware and I can't detect a virus(although he does surf porn sites whether he will admit to it or not). Also he has no disks for it whatsoever. He said it never came with any and that he never even knew about making back-up disks. He does however have a bad battery as it told me that in the BIOS when I went in to change the boot order so that I could boot from floppy or cd first. He also doesn't have his papers with his product key on it either. Right now what it is doing is circleing in safe mode. What I mean is that it loads, then tells you you are in safe mode would you like to continue, I click yes, It loads the screen and his icons. Then after about 2 min (without touching anything) the hourglass appears and it goes back to the first thing , you are in safe mode, do you want to stay in safe mode. I click yes and so on. From what I can see he has no firewall and no antivirus so at this point I am not ruling anything out. Thank you in advance for any help anyone can provide or a direction you can point me in. Upon switching from administrator to his user account it has big letter next to the clock virus detected. It does not say it on the administrators side. it seems that macafee is in there somewhere but you can't find it unless you go in to windows explorer as admin. In his user account there isn't many programs showing and when you click on start there is maybe 3 programs listed and the all programs button is gone , the log off button is gone, run is gone. It wouldn't let me connect to the internet, it wouldn't let me copy spybot from a cd.