Random BSOD, error 0x0000009f

OK thanks. I'll try removing SPTD first and see what happens. I can go days without a reboot sometimes so I will just have to wait and see. Thanks for all the help and post my results as soon as possible.

The Asus utilities you referenced should I just delete them or uninstall them through the control panel?

Arc said:

Daemon Tools, Alcohol 120% and Power Archiver Pro uses SCSI Pass Through Direct (SPTD), which is a well known BSOD causer. Uninstall Daemon Tools at first. Then download SPTD standalone installer from Disk-Tools.com, and execute the downloaded file as guided below :

• Double click to open it.
• Click this button only:
• 
• If it is grayed out, as in the picture, there is no more SPTD in your system, and you just close the window.

Delete them all:

• ASUS Ai Charger: C:\Windows\system32\DRIVERS\AiCharger.sys
• ATK Generic Function Service: C:\Program Files (x86)\ASUS\ATK Package\ATKGFNEX\ASMMAP64.sys
• ASUS Image Toolkit Disk Monitor Driver: C:\Windows\System32\Drivers\assd.sys
• ATK WMIACPI Utility: C:\Program Files (x86)\ASUS\ATK Package\ATK WMIACPI\atkwmiacpi64.sys

All those are bloatware, and highly problematic. I'd recommend you to Clean Up Factory Bloatware, with a special reference to Point #13

13. Consider a Clean Reinstall - Factory OEM Windows 7 which is often better than getting a new computer considering how pre-installed bloatware can corrupt Windows 7 even if it's completely cleaned up.

From the data you supplied earlier, some BSODs were caused by Norton.

fffff880`037c3838 fffff880`05727af3Unable to load image \??\C:\ProgramData\Symantec\Symantec Endpoint Protection\12.1.671.4971.105\Data\Definitions\BASHDefs\20130208.011\BHDrvx64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for BHDrvx64.sys
*** ERROR: Module load completed but symbols could not be loaded for BHDrvx64.sys
BHDrvx64+0x94af3

Uninstall Norton and all Symentec products using Norton Removal tool. At least as a test. Use Microsoft Security Essentials as your antivirus with windows inbuilt firewall, and free MBAM as the on demand scanner.
Download, install and update those, and then run full system scans with both of them, one by one.


Let us know the results.