I built a really good PC last year and recently it started locking / resetting / Bluescreening with the following message:

***STOP: 0x00000050 (0xe577ffdc, 0x00000001, 0x8046b6e0, 0x00000002)
PAGE_FAULT_IN_NONPAGED_AREA
***Address 8046b6e0 base at 80400000, DateStamp 3ee6c002 - ntoskrnl.exe


I have two hard drives that have since been formatted. and I have tried to reinstall on both drives without the other one connected. Nothing seems to work so I figured I would ask since I don't know what the blue screen means.

oh, and I have not installed any new hardware / software

Windows couldn't access some data that it had saved. Could be bad sectors on the hard disks. More likely to be defective memory.

This Microsoft support article gives a good explanation of it and suggestions of how to troubleshoot the problem to find the cause:

http://www.microsoft.com/windows2000...d_exe_duol.asp

well, I have two HDD in which I have formatted, and tried to install several times without the other drive connected. I have also used my friend's RAM sticks. Still have the problem....

Did you check out the other things that the Microsoft article talked about?

Extract from microsoft:

Stop 0x00000050 or PAGE_FAULT_IN_NONPAGED_AREA

.....If you added new hardware recently, remove and replace the hardware to determine if it is causing or contributing to the problem. Run diagnostics software supplied by the hardware manufacturer to determine if the component has failed.
Stop 0x50 messages can also occur after installing faulty drivers or system services. If the file name is listed, you need to disable, remove, or roll back that driver. If not, disable the recently installed service or application to determine if this resolves the error. If this does not resolve the problem, contact the hardware manufacturer for updates. Using updated drivers and software is especially important for network interface cards, video adapters, backup programs, multimedia applications, antivirus scanners, and CD mastering tools. If an updated driver is not available, attempt to use a driver from a similar device in the same family. For example, if printing to a Model 1100C printer causes Stop 0x50 errors, using a printer driver meant for a Model 1100A or Model 1000 might temporarily resolve the problem.....

To view full article go here:
http://www.microsoft.com/resources/d...d_stp_ccgm.asp