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From your most recent .dmp and bugcheck it points toward a device driver
. Starting with problematic software first:
I do not see any antivirus listed on your .nfo file, but see something from "symantec" in there.
Start Menu\Programs\Symantec Endpoint Protection Public:Start Menu\Programs\Symantec Endpoint Protection Public
The antivirus you are currently using is known to and contributing to your BSOD crashes, consider uninstalling it with the Norton Removal Tool and replace with Microsoft Security Essentials at least to test
Recommended antivirus program for Windows 7 based on stability compared to others:-
Do not start the free trial of Malware Bytes; remember to deselect that option when prompted.
Run a full scan with both (separately) once downloaded, installed and updated.
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:
Run Disk Check on your hard disk for file system errors and bad sectors on it:
Free up the start-up, nothing except the antivirus is usually needed.
Let us know the results.