Sometimes there's a filename that goes along with that message. If so, that will help to figure out which driver it is. This is most likely a STOP 0xD1 error ( http://aumha.org/win5/kbestop.php#0xd1
) As Enthusiast is said, it's usually caused by a bad/corrupt driver, faulty or mismatched RAM, or a corrupt pagefile. (I'll comment on the RAM and pagefile at the end of this posting).
The error message is also located in your Event Viewer. See this article for how to find it: http://www.bleepingcomputer.com/forums/t/40108/how-to-use-event-viewer/
If Error Reporting is turned on, you can save the files that it will send (click on the Details link to find them). The .mdmp file in that location can be analyzed using the procedure in the next paragraph to find out more information about what driver it is.
Search your hard drive for .dmp and .mdmp files. If you find any, use this technique to create an analysis of it. Then copy and paste the analysis into your next post (BTW - when it says to use the !analyze -v command, it goes in the empty box at the very bottom of the debugger's window (starting on the left)). Here's the link: http://forums.majorgeeks.com/showthread.php?t=35246
Or, you could just start updating drivers until you hit on the right one. Here's the order that I use:
1) Check any new or questionable devices for updates. Also, if you have a "hunch" - try updating that software also.
2) Visit Windows Update and ensure that you have all the updates
3) Update your motherboard/chipset drivers to the latest version
4) Remove/uninstall your video drivers - then update to the latest WHQL certified version (that means it's been certified to work with Windows).
5) Remove/uninstall your NIC drivers - then update to the latest version
6) Remove/uninstall your sound drivers - the update to the latest version
7) Then remove and update any drivers for devices that are built into your motherboard (and weren't covered by the motherboard/chipset update in step 3
8) Then remove and update any drivers for any other hardware devices that you use on your system.
9) If it's still not fixed, try a repair install of Windows XP using this link: http://www.michaelstevenstech.com/XPrepairinstall.htm
To check your RAM, go to this page and download the free memory tester there: http://www.memtest86.com/
Install it to a floppy or a CD and boot from it (follow the directions exactly). Let the test run for at least 2 hours (but overnight is best). Any errors means bad RAM (although some folks will disagree saying that a few errors won't hurt anything - but I sure won't use it to balance my checkbook!).
To recreate your page file, follow these steps:
1) Go to Start...Run...and type in "control sysdm.cpl,,3" (without the quotes) and press Enter.
2) Click on the the Performance Settings button
3) Click on the Advanced tab
4) Click on the Change button underneath the Virtual Memory section
5) Write down the settings for the current pagefile (you'll need this to restore it)
6) Click on the "No paging file" radio button - then click on the Set button.
7) Click on "OK" 3 times to exit the dialog.
8) Reboot the computer
9) Repeat steps 1 to 4 to get back into the pagefile settings
10) Restore the settings to what you wrote down in step 5 - then click on the Set button.
11) Click "OK" 3 times to exit the dialog.
12) Reboot your system and you'll have a brand spanking new pagefile!