Alright. So it means we're dealing with software problems.
Edit: Well yup, it is actually contributing in the crashes:
Code:
b59b7464 8d9f4100Unable to load image \??\C:\windows\system32\drivers\avgtpx86.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for avgtpx86.sys
*** ERROR: Module load completed but symbols could not be loaded for avgtpx86.sys
avgtpx86+0x1100
Recommendations:
AVG can contribute in BSOD-s, so I'd suggest you to uninstall it for troubleshooting purpose.
Use Microsoft Security Essentials and Malwarebytes free instead.
Make a full scan with them (Separately)
Now update the following driver: Code:
2: kd> lmvm hpdskflt
start end module name
88fe5000 88fee000 hpdskflt T (no symbols)
Loaded symbol image file: hpdskflt.sys
Image path: \SystemRoot\system32\DRIVERS\hpdskflt.sys
Image name: hpdskflt.sys
Timestamp: Sat May 14 00:47:26 2011 (4DCD7CBE)
CheckSum: 000154E2
ImageSize: 00009000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4 Source:
Driver Reference Table
Run Disk Check on your hard disk for file system errors and bad sectors on it:
Run the System File Checker that scans the of all protected
Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:
- Click on the

- Type CMD on Search
- Left click and Run as Administrator
- Type SFC /scannow
Full tutorial here:
Let us know the results.