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Problematic software: Code:
Start Menu\Programs\Avira Public:Start Menu\Programs\Avira Public
Start Menu\Programs\Avira\Avira Desktop Public:Start Menu\Programs\Avira\Avira Desktop Public
Start Menu\Programs\DAEMON Tools Lite Public:Start Menu\Programs\DAEMON Tools Lite Public
Avira is known to cause blue screens on some systems. Please uninstall it. Use Microsoft Security Essentials, it's free+light weight and does not cause problems on the Windows 7 OS. If you prefer additional security go with the free version of malware bytes. A tutorial on security is listed below:
Run a full scan with both (separately) once downloaded, installed and updated.
Daemon Tools is known to cause blue screens. Look on our forum for evidence.
Code:
Driver c:\windows\system32\drivers\atikmdag.sys (8.1.1.859, 4.00 MB (4,194,816 bytes), 14-07-09 00:09)
You need to update to the latest drivers for your graphic card.
Click on the Start

► Control Panel ► Programs ► Uninstall a program ► Uninstall everything related to ATI. If there are driver remnants, use driver sweeper to get rid of them.
Additional suggestions:
Run this tool and delete anything it finds:
Run the System File Checker that scans the integrity of all protected
Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:
Then run Disk Check on your hard disk for file system errors and bad sectors on it:
Let us know the results, good luck