1. If you are overclocking any hardware, please stop. Reset any changed values back to default and reset/clear CMOS:
Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS. Uninstall any overclocking tool as these can also be a reason of blue screens.
2. Uninstall your current antivirus software. It can be a cause of BSOD very often. Please remove it with its
removal tool and use
Microsoft Security Essentials in its place.
Malwarebytes is a great combination with it. Go through
this thread for more info.
3. Run
Disk Check with both boxes checked for all HDDs and with Automatically fix file system errors. Post back your logs for the checks after finding them using
http://www.sevenforums.com/tutorials/96938-check-disk-chkdsk-read-event-viewer-log.html
4. Run
http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html to check windows for integrity violations. Run it up to three times to fix all errors. Post back if it continues to show errors after a fourth run or if the first run comes back with no integrity violations.
5. Make scans with
Kaspersky TDSskiller and
ESET Online scanner.
6. Perform a
Clean Start up, this will help avoid any problematic applications from bugging the system.
7. Use
Revo Uninstaller Free to uninstall stubborn software. Opt for Advanced Mode and uninstall the software, delete the leftover registry entries.
8. Use
Crystal Disk Info to
upload a screenshot of your Hard Drives (s). Test your Hard Drives (s) running a
Hard Drive Diag.
9. Test and Diagnose RAM issues with
http://www.sevenforums.com/tutorials/105647-ram-test-memtest86.html. Pay close attention to Part 3 of the tutorial "If you have errors" Take the test for at least 7-10 passes. It may take up to 22 passes to find problems. Make sure to run it once after the system has been on for a few hours and is warm, and then also run it again when the system has been off for a few hours and is cold.
10. Monitor hardware temperature for overheating issues with system monitoring software like
Piriform - Speccy or
CPUID - HWMonitor. Upload a screen shot of the Summary tab as well:
