bsod - Worker_thread_returned_at_bad_iqrl - occurence - DL/browsing

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No dump files,... Follow: Dump Files - Configure Windows to Create on BSOD

PROBLEMATIC SOFTWARE:

Code:

Start Menu\Programs\Advanced SystemCare 6	Public:Start Menu\Programs\Advanced SystemCare 6	Public
Start Menu\Programs\Glary Utilities	Public:Start Menu\Programs\Glary Utilities	Public
Start Menu\Programs\McAfee	Public:Start Menu\Programs\McAfee	Public
Start Menu\Programs\Smart Defrag 2	Public:Start Menu\Programs\Smart Defrag 2	Public

McAfee is a frequent cause of BSOD-s (specially in the situation you describe). Consider uninstalling it with the McAfee Removal Tool and replace with Microsoft Security Essentials at least to test.

• How to uninstall or reinstall supported McAfee products using the Consumer Products Removal tool (MCPR)
• McAfee Removal Tool - McAfee Uninstaller

MSE is recommended from a strict BSOD perspective, compatibility & stability compared to other antiviruses/internet security software:-

1. Microsoft Security Essentials - Free Antivirus for Windows
2. Malwarebytes - Free
3. Good and Free system security combination.

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.

PS: I notice that you already have MSE & MBAM which is a great combination. + Running two antiviruses would conflict. :: is it bad to run multiple antivirus programs?

Uninstall - 1. Advance System Care 2. Smart Defrag 2 3. Glary utilities; with the free version of Revo uninistaller. Uninstall using Advanced Mode and reboot the desktop/laptop if prompted.

• Download Revo Uninstaller Freeware - Free and Full Download - Uninstall software, remove programs, solve uninstall problems

These tools can be a cause of BSOD's. The windows 7 operating system does not require these registry cleaning software. They often tune-down rather than tune-up and can wreck the OS beyond repair. Microsoft have improved Windows 7 significantly and it is much better at organising and optimising itself than its predecessors. Check this, this and this thread for evidence.

If you feel the need to use a registry cleaning or optimisation software, most of us recommend the use of CCleaner but make sure you back up the registry before making letting ccleaner delete anything. You may make use of the great in-built Disk Cleanup and Extended Disk Cleanup if required to do so, regarding de-frag utilities, I recommend yet again the in-built Disk Defragmenter - Open and Use & Puran Defrag which is much reliable compared to others.

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Run the System File Checker. It allows the user to scan for and restore corruptions in Windows system files.

• 1. Click on the
  2. Type CMD on Search
  3. Left click and Run as Administrator
  4. Type SFC /scannow

Full tutorial here:

• SFC /SCANNOW Command - System File Checker

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

• Disk Check

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Free up the start-up, nothing except the antivirus is usually needed.

• Startup Programs - Change
• Troubleshoot Application Conflicts by Performing a Clean Startup

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Make scans with the following:

-Kaspersky TDSSKiller

• Anti-rootkit utility TDSSKiller

-ESET online scanner

• Free Online Virus Scanner | ESET

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Check a new version for your BIOS:

Code:

BIOS Version/Date	Dell Inc. A05, 03/01/2008

Post back results. :)

Small - Mini dump.

And you have put in your specs, I can see them. If I need more I will let you know :)

Go for the urgent one.

I've checked the zip, did you get a BSOD again? During or after making the changes to your system?
There are no dump files :)

One more snip, Summary tab of Speccy:

• Speccy - System Information - Free Download

Yes. I just wanted to see the temperatures :)

81 C is rather high.. Have you cleared dust inside the case? BTW is this a laptop or desktop..