When encountering the "KERNEL SECURITY CHECK FAILURE" blue screen error, first check whether the recently installed driver is compatible, enter safe mode to uninstall or fallback the driver and use the official version; secondly, run the sfc /scannow and DISM commands to scan and repair the system files; then, use the Windows memory diagnostic tool to detect memory problems and uninstall suspicious software; finally, check and install the latest system patches to ensure the system is updated. Follow the above steps to check in turn, and in most cases, the problem can be solved.

When encountering the blue screen error "KERNEL SECURITY CHECK FAILURE", many people's first reaction is that the system is broken or there is a hardware problem. In fact, although this problem seems scary, the reasons are relatively concentrated, and there are rules to follow when solving it. It is usually related to memory management, driver conflicts, or system file corruption. Let’s start from several common directions and see how to check and repair step by step.

1. Check the recently installed drivers

When Windows updates the driver, especially graphics, sound cards or network card drivers, if an incompatible version is installed, it is easy to trigger such blue screen errors. Especially if you only have this problem after updating the driver, it is most likely that it is caused by the driver.

• Try to enter safe mode to uninstall the latest driver

  
  • Press F8 repeatedly during booting (Win10/11 may need to enter safe mode by restoring the environment)
  • Open Device Manager and find the recently updated devices
  • Right-click to select "Backback Driver" or uninstall directly

• Using the official Microsoft driver

  • Don't rely on third-party driver software, try to download the corresponding driver model on the official website.
  • Or use the system's own "automatic update driver" function

2. Scan and repair system files

Corruption of the system core file can also cause "KERNEL SECURITY CHECK FAILURE". Windows comes with some tools that can help you check and repair these files.

• Open a command prompt (administrator permissions), and then run the following commands:

 sfc /scannow

If you find that the damage is not repairable, run again:

 DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth

This scans the system image and tries to fix the issue. After completion, restart to see if there is still a blue screen.

3. Check memory problems

This error may also be caused by memory access out of bounds or memory corruption, especially some third-party antivirus software or virtual machine-related components are prone to touch the kernel memory area.

• Run Windows Memory Diagnostic Tool

  • Press Win R to enter mdsched.exe to enter
  • Select Restart Detection Memory Now

• Uninstall suspicious software

  • Especially antivirus software, firewalls, virtual machine tools and other programs involving underlying drivers
  • Try to uninstall and see if the blue screen still appears

• View minidump file

  • If you have a dump file generated by blue screen, you can use WinDbg to open it to analyze which module has problems.
  • The path is usually in C:\Windows\Minidump\

4. Update system patches

Sometimes this error is due to known vulnerabilities or compatibility issues in the system, and Microsoft has released the corresponding patch.

• Go to Settings → Windows Update to check if there are no updates installed
• It is recommended to enable automatic updates to keep the system up to date

Basically these common ways of dealing with it. Start with the latest changes, such as drivers or software, and then gradually troubleshoot system files and memory issues. In most cases, the problem is not too complicated, but the details are easily overlooked.

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