How to fix “KERNEL_SECURITY_CHECK_FAILURE”. Free immediate support

How to Fix KERNEL_SECURITY_CHECK_FAILURE on Windows

Learn about the KERNEL_SECURITY_CHECK_FAILURE BSOD error, its causes like outdated drivers, corrupted files, or failing hardware, and find step-by-step fixes such as updating Windows, running diagnostics, or reinstalling the OS if necessary.

Use our free chatbot for technical support—it’s designed to help solve your issues efficiently.

Key Takeaways

Definition: KERNEL_SECURITY_CHECK_FAILURE is a Blue Screen of Death (BSOD) error on Windows systems. It indicates issues such as memory corruption, outdated drivers, or software incompatibility.
Possible Causes: Outdated drivers, corrupted system files, bad memory sectors, viruses, and recently installed software.
Fixes Include: Updating Windows, running diagnostics, repairing corrupted system files, checking driver statuses, running virus scans, removing problematic software, or, if needed, reinstalling Windows.

Comprehensive Step-by-Step Guide to Fix KERNEL_SECURITY_CHECK_FAILURE

This error can be frustrating, but with this expert guide, you’ll efficiently solve it by following the steps below.

This step ensures access to advanced recovery tools in the event your system isn’t booting correctly.

Shut down your Windows machine and restart it. Repeat this process twice to force the system into Recovery Mode.
Navigate to Troubleshoot > Advanced Options > Command Prompt.

In the Command Prompt, type:

BCDEDIT /SET {DEFAULT} BOOTMENUPOLICY LEGACY

Hit Enter, type EXIT, then restart your PC.

2. Update Windows

Windows updates address compatibility issues and resolve known bugs.

Open Windows Settings (Win + I) and select Update & Security.
Click Check for updates.
Install any available updates and restart your PC.

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3. Update Drivers

Drivers often cause the KERNEL_SECURITY_CHECK_FAILURE error, particularly graphics or network adapters.

Steps:

Open Device Manager (search for it in the Start menu).
Right-click the hardware (e.g., your GPU under “Display Adapters”).
Select Update Driver > Search automatically for updated driver software.
Restart your PC after updates are installed.

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4. Run Windows Memory Diagnostic

Ensure your system RAM isn’t corrupted by following these steps:

Press Win + R, type mdsched.exe, and hit Enter.
Choose Restart now and check for problems.
Your system will reboot and begin the memory test automatically.

If memory issues are identified, consider replacing the affected RAM modules.

5. Run the System File Checker (SFC)

Repair corrupted or missing system files:

Open Command Prompt as Administrator (Win + S → type cmd, right-click, and select Run as Administrator).
Type:
```
sfc /scannow
```
Press Enter. Wait for the tool to scan and fix any issues.

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6. Run CHKDSK Command

Hard drive errors can also trigger the problem. Fix these via CHKDSK:

Open Command Prompt as Administrator.
Type:
```
chkdsk c: /f /r
```
Hit Enter. This will scan for errors and attempt to fix them.

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7. Perform a Full Virus Scan

Eliminate malware, which could be sabotaging system integrity.

Launch Windows Security via the Start menu.
Navigate to Virus & threat protection, select Quick scan, or choose Full scan under Scan options.

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8. Check in Safe Mode

Safe Mode temporarily disables third-party software, helping isolate the issue:

Restart and press F8 to open Advanced Boot Options.
Select Safe Mode.

If the BSOD doesn’t occur here, uninstall recent software or updates that may have caused the issue.

9. Perform a System Restore

System Restore resets your PC to a previous error-free state.

Restart and press F8 to enter the Advanced Boot Menu.
Click on System Restore and follow the steps.

Choose a restore point created before the issue began.

10. Reinstall Windows

If other solutions fail, reinstalling Windows is the last resort.

Back up your data using tools like MiniTool Power Data Recovery.
Recover data quickly ➡️
Download a fresh Windows copy from the official Microsoft website.
Boot from the installation media and follow the on-screen instructions to complete the installation.

Frequently Asked Questions (FAQs)

1. What causes KERNEL_SECURITY_CHECK_FAILURE?

This BSOD typically arises from corrupted drivers, incompatible software, malware, or failing hardware components like RAM or hard drives.

2. How do I identify faulty drivers causing the issue?

Use Device Manager to check for yellow exclamation marks on hardware or run debugging tools to analyze crash logs.

3. Can antivirus programs trigger BSOD errors?

Yes, overly aggressive antivirus programs can conflict with Windows’ kernel, leading to this issue. If you suspect this, try disabling or uninstalling the antivirus.

4. Is reinstalling Windows the only solution?

No, reinstalling Windows should only be a last resort after trying the other steps outlined above.

5. Should I use a recovery tool before any major fixes?

Absolutely. Recovery tools like MiniTool ShadowMaker or EaseUS OS2Go safeguard your data in case something goes wrong.

6. How do I prevent KERNEL_SECURITY_CHECK_FAILURE in the future?

Keep your drivers updated, install Windows updates regularly, and use a reliable antivirus program like Malwarebytes.

By following this expert guide, you should be able to resolve the KERNEL_SECURITY_CHECK_FAILURE error effectively. If these methods still don’t help, consider consulting Microsoft Support for advanced troubleshooting.

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