This BSOD is a tricky one to spot.
Gospel according to MS:
0x000000C2/40 = Attempt to free usermode address to kernel pool
This Stop message is typically due to a faulty driver or software. Possible Resolutions:
* A Stop 0xC2 messages might occur after installing a faulty device driver, system service, or firmware. If a Stop message lists a driver by name, disable, remove, or roll back the driver to correct the problem. If disabling or removing drivers resolves the issues, contact the manufacturer about a possible update. Using updated software is especially important for multimedia applications, antivirus scanners, DVD playback, and CD mastering tools.
* A Stop 0xC2 messages might also be due to failing or defective hardware. If a Stop message points to a category of devices (such as disk controllers, for example), try removing or replacing the hardware to determine if it is causing the problem.
End Gospel
Can you fill out the
User Profile (top left on any page) with as many technical details about that PC as possible?
What Service Pack is loaded on that W2K? SP4 is the current one, with about 30 updates from MS after that.
Check for any exclamation/question marks in (Start/Settings/Control Panel/System/Hardware tab/Device Manager) and check in (Start/Settings/Control Panel/Administrative Tools/Computer Management/System Tools/Event Viewer/Application and System Logs) for any Yellow or Red notifications. They might help you further.
Please report back on the ABOVE, while you continue with the BELOW.
Set your pagefile to a fixed size of 1.5 times the amount of your memory. (Start/Settings/Control Panel/System/Advanced tab/Performance Options/Change) Set Initial and Maximum size to the same number (e.g. 768 when 512MB memory).
Is there an Audigy sound-card in that PC? If so, remove the old drivers and D/L-install the latest drivers.
Could the video card be overheating?
Go to
www.memtest86.org and D/L memtest86. This installs onto a 1.44MB floppy. Run it overnight to see what errors it comes up with.
As you can see, lots to do for now.