Random BSOD's, worker_thread_returned_at_bad_irql

Welcome

Code:

Start Menu\Programs\McAfee	Public:Start Menu\Programs\McAfee	Public

McAfee is a known cause to BSOD, please uninstall it. I note that you already have MSE installed but two antiviruses on a computer would create problems anyway.

• McAfee Removal Tool - McAfee Uninstaller

Recommended antivirus program for Windows 7 based on stability compared to others:-

• Microsoft Security Essentials - Free Antivirus for Windows
• Malwarebytes - The Free version
• Good and Free system security combination.

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:

• SFC /SCANNOW Command - System File Checker

Run Disk Check on your hard disk for file system errors and bad sectors on it:

• Disk Check

Keep us posted of the results and further BSODs if any

You're welcome. Mark the thread as solved if you're ready. Do come back if you have any other issues :)

Good luck