Downloading via steam, bad_pool_header BSOD (sf.zip included)

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Update the following drivers:

1. ndisrd.sys : Timestamp: Thu May 31 09:03:33 2012 (4FC6DF85) Driver Reference Table : Mionet driver/WinpkFilter high performance packet filtering framework
2. MRVW24C.sys Timestamp: Mon Oct 29 09:22:31 2007 (472551F7): Driver Reference Table : Linksys, NetGear, DLink or Marvell Wireless USB Network Adapter

Click on the Start ► Control Panel ► Programs ► Uninstall a program ► Uninstall everything related to; both the programs above, restart the computer if you have to. Then delete remnants of its drivers/older drivers using Driver Fusion/Sweeper, reboot the computer again and download the latest versions from the driver reference links.

Norton Antivirus can be a frequent cause of BSOD-s. Uninstall it and use Microsoft Security Essentials (TO TEST).

• Norton Removal Tool

Run this tool and delete anything it finds:

• Anti-rootkit utility TDSSKiller

Make full scans with MSE and MBAM:

• Microsoft Security Essentials - Microsoft Windows
• Malwarebytes : Malwarebytes Anti-Malware removes malware including viruses, spyware, worms and trojans, plus it protects your computer

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:

• Click on the
• Type CMD on Search
• Left click and Run as Administrator
• Type SFC /scannow

Full tutorial here:

• SFC /SCANNOW Command - System File Checker

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

• Disk Check

Let us know the results.