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Code:
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Loading User Symbols
Loading unloaded module list
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*** WARNING: Unable to verify timestamp for teefer2.sys
*** ERROR: Module load completed but symbols could not be loaded for teefer2.sys
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* Bugcheck Analysis *
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Use !analyze -v to get detailed debugging information.
BugCheck 1000007E, {ffffffffc0000005, fffff88005bbe530, fffff880032c3938, fffff880032c3190}
Probably caused by : teefer2.sys ( teefer2+5530 )
Followup: MachineOwner
--------- All your BSOD-s were caused by Symantec Endpoint Protection 11 firewall /
teefer2.sys
Please remove anything related to Norton/Symantec. For some reason they are known 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 these tools and delete anything they may find.
ESET online scanner:
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.
Hope this helps for now. Good luck.