my computer has been shutting off and i've been getting a blue screen saying things LIKE "PAGE_FAULT_IN_NON_PAGED_AREA" and "DRIVER_IRQL_NOT_LESS OR EQUAL". It HAPPENS more often when i open ad-aware or while it's scanning. I looked up a solution to this and it said to download "vundofix" and search for this vundo thing and remove it. I did but this still happens. Also, usually when i get the blue screen I have to shut off the computer to start it up again. But when i shut it off and try turning it back on it turns on for about .5 seconds then turns back off. I have to wait a while till when I turn it on, it stays on. I took out one of my ram sticks cause the blue screen was saying something about possible memory problems, and this stopped my computer from restarting for about a week, but now its back again.

asus motherboard
P4 3.00gHz
512mb of ram (i have two sticks of 512 but i removed one)
ATI Radeon X1600 pro
windows xp pro

Try booting in safe mode then scanning again for viruses...Did you check your computer temperatures? Did you check inside to see, if all fans are running? Did you clean inside with compressed air?I searched for viruses, found an deleted stuff but its still doing it.

I've cleaned out my computer and checked the fans and temps and they seem to be fineBoth errors indicate more of hardware problem, then malware.
PAGE_FAULT_IN_NON_PAGED_AREA may be caused by bad RAM, bad video RAM, or video card itself.
DRIVER_IRQL_NOT_LESS OR EQUAL - overheating, or, again, bad RAM.

To eliminate the simplest cause, restart your computer into Safe Mode (keep tapping F8 key after restart, until menu appears), and run it from there for a while.
See, if it'll keep restarting.ok for now i'll try a stick of ram from another computer cause this video card is pretty new and all my temps seem to be ok.Just make sure, you use correct RAM.I haven't been ABLE to get another stick of ram but meanwhile i got another blue screen and under technical information it said,

STOP: 0X0000008E (0XC0000005, 0XF7743A09, 0XF7CF667C, 0X00000000)

SPTD.SYS - ADDRESS F7743A09 BASE AT F7726000 DATESTAMP 4612449B

I was wondering if thats relevant at all

Also by type of ram, do you mean like "DDR"? or does it get more specific than that?I'll bet it's some ram that's going bad.
If you have a cople sticks in there, remove one and then run it for awhile.

If it blue screens again, stop and replace it with the other stick.
Run that for awhile and see what happens.

Check this site out for some info on Memory testing.
http://www.pcstats.com/articleview.cfm?articleid=1565&page=2

This is pretty handy.

Good Luck and take care
DougMemTest

Third one down. Use the DLoad to create a bootable CD.

You may also be having power issues as well.
How old is the PSU and what make/wattage is it ? ?
Simplest way to test this is borrow a known WORKING one of the same or greater wattage and swap it in there...Oh Yes.. darn good catch... Power supply.... If you're getting funky wattage it'll do this...