BSOD about 5-15 minutes after booting up. Error 0x000000f4

 Clean boot

• Troubleshoot Application Conflicts by Performing a Clean Startup

Reduce items at start-up. No software except anti-virus is required plus doing this improves the time for logging into windows:

• How to Change, Add, or Remove Startup Programs in Windows 7

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Please uninstall Daemon Tools. It uses a driver called sptd.sys which is known to cause BSODs in Windows 7.

 SPTD Removal:

• Uninstall the software using Add/Remove Programs.
• Reboot the system.
• Once the program is uninstalled, run sptd.sys uninstaller to remove the driver from your system.
• DuplexSecure - Downloads

As an alternative, many people recommend the use of Total Mounter or Magic ISO

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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

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Run Disk Check on your Hard Drive for file system errors and bad sectors on it.

 Hard Drive Diagnostics

• Double click and open my computer.
• Right click on desired drive and hit properties.
• Click on tools tab and Check now.

Read complete instructions on the tutorial: Disk Check

Other Tests:

 

• Upload a screenshot of your hard disk using Crystal Disk Info.
• Make a hard drive test from the hard drive manufacturers website.
• Test your Hard Drive with SeaTools.