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How to Fix Kernel Security Check Failure in Windows 10

Windows 10 might be the latest and greatest operating system from Microsoft – but it still has to carry the decades of legacy that Windows has produced with it. This is needed of course – you can’t expect developers to rewrite all of their code from scratch every time Microsoft decides to release a new version of Windows. However Microsoft doesn’t stop from trying, and while they introduced a completely new framework for applications in Windows 8 – not many people used it because not many people used Windows 8.

Windows 10 in many ways fixes the wrong decisions taken in Windows 8, and implements them in a better more user friendly way. However, since it has to carry all the legacy of Windows with it, it also brings all the bugs and problems with it, which is obvious and is also the necessary evil but it does get annoying. Microsoft has tried long and hard trying to fix all the reasons Windows decides to crash but not all of them are preventable – specially when the bugs occur in the core of Windows, also known as the kernel.

The kernel is what Windows is built upon, and so to amend any problems within the kernel requires what you could call a divine intervention – but we can try something less ridiculous first.

Fix Kernel Security Check Failure in Windows 10

Method #1: Use System File Checker & Memory Diagnostic Tool

  • When Windows fails to start correctly it should automatically detect that something is wrong and ask you what you want to do – here you need to click “See advanced repair options”.

  • Now click on “Troubleshoot” and then once again go to “Advanced Options”.

  • In Advanced Options click on “Startup Settings”, and then click the Restart button on bottom right.
  • Now Windows 10 will reboot with the minimum settings, also known as safe mode – note that if this fails then you must skip to Solution 2 and ignore everything else in Solution 1.
  • If however it did work, you should be a desktop that might look a bit weird but that’s fine.
  • Now open your Start Menu and type “cmd”, once you see Command Prompt, right click on it and click “Run As Administrator”.

  • Now you have to type “sfc /scannow” in the Command Prompt and press Enter.
  • Now wait for the scan to finish – if it finds any issues it will attempt to resolve them itself.
  • Once the command has finished, you can close Command Prompt.
  • Now you have to open your start menu once again and type “mdsched.exe”.

  • This will open the Memory Diagnostic tool, where you need to click on “Restart now and check your problems”.
  • Now Windows should reboot and start testing your memory for errors.

Once Windows has finished searching for memory errors it should reboot into the normal mode – your BSODs should be fixed now. If the memory test showed you errors then you might need to contact a professional to check your RAM sticks, as you might be in need of a hardware replacement.

If your RAM did not have any errors but you are still getting BSOD’s, you might want to try solution 2 – know that you will require the Windows install files for this, which you can download directly from Microsoft.

Method #2: Fixing Using BCDEdit

If you are still facing the Kernel Security Check Failure error in Windows 10, then try this metho which will definitely solve your issue.

  • Once you have a bootable DVD or USB stick ready to boot, restart your PC with the bootable device connected.
  • Boot into the Windows setup and click Next.
  • Now choose the Troubleshoot option and click Advanced Options.

  • In Advanced Options click “Command Prompt” and type “C:” in the window that pops up, then press Enter.
  • Wait for the command to execute and when it is finished, type “exit” and press Enter to close the command prompt.
  • Now you should be back on the “choose an option” screen, click Continue here.
  • Now your PC should start as normal.

Solution 2 should fix your issue, if it however does not then you should get some expert help because you will have to check if your hardware is failing or not. If it is failing then you will have to spend some money – you can’t really help it if your hardware itself is failing, and the sooner you detect and replace it the less chance of data loss you have.

The issue could either by your RAM or your Hard Disks, but it is hard to determine what exactly is causing this issue. You can also as a really drastic solution try and reinstall Windows – this might or might not work. It will not help you if your hardware is failing, but if you are sure enough that it is not your hardware and no other solutions work, this is your last resort.

If you have any sort of questions, you can get them cleared in the comments section below. We hope that one of the two solutions mentioned above help you is solving the Kernel Security Check Failure issue in Windows 10.

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