Windows 7: Getting BSOD screens with error message PAGE_FAULT_IN_NONPAGED_AREA

Its been two months since I'm getting this BSOD randomly while playing games, internet browsing, and programs which require more RAM memory. I've been through almost all BSOD threads on sevenforums.com and now I doubt that something is wrong with my RAM, I have two DDR3 RAM sticks installed. One of 2GB and one of 1GB.
Please help me in this matter I'm really tired of it.

Hello mawaissansari and welcome to Seven Forums.

Couple of things I'd like you to do that will help this Forum help you.
1. Fill in your system specs so all info is in one place.
System Info - See Your System Specs
2. Set up your machine to generate dump files.
Dump Files - Configure Windows to Create on BSOD
3. Follow the BSOD posting instructions.
http://www.sevenforums.com/crashes-d...tructions.html

A Page_Fault error can be cause by faulty or failing hardware, a faulty system service, an outdated driver, even a problem with an antivirus program. Each BSOD generates a specific error code or stop code that tries to identify the underlying cause(s). The error codes will be included in the dump files. Without those codes it will be a guessing game trying to figure out what is affecting your computer.

Another Forum member informed me that many Page_Fault errors are caused by anti-virus programs. Based on that you may want to uninstall your current AV and replace it with Microsoft Security Essentials (at least temporarily until your problems are resolved.) Update it and run a full scan. You may also want to run full scans with these free on-demand scanners:

Malwarebytes

ESET Online Scanner

In the meantime you can try some general troubleshooting steps. Check for damaged or corrupt system files by running a system file checker scan from an elevated command prompt (option two.) If problems are found, run the scan 3 times and reboot your computer after each scan.

SFC /SCANNOW Command - System File Checker

Check your hard drive for problems by running Check Disk.

Disk Check

And you could also go through these troubleshooting guides:

Troubleshooting Windows 7 Failure to Boot

Troubleshooting Steps for Windows 7

Finally, you may find some useful information from this Microsoft forum thread. Please note that without a specific error code or stop code I cannot recommend any of the suggested fixes.

Blue Screen: PAGE_FAULT_IN_NONPAGED_AREA - Microsoft Community