Kernel Security Check Failure is a common BSOD error in Windows 11. The difference of general BSOD (Blue Screen of Death) errors and Kernel Security Check Failure error is that the blue screen has been changed to black background to better match the theme by Microsoft. In this article, the reasons why Kernel Security Check Failure occurred in Windows 11 and 6 solutions about how to fix Kernel Security Check Failure in Windows 11 will be discussed.
Reasons for Kernel Security Check Failure in Windows 11
The Kernel Security Check Failure in Windows 11 occurred due to a lot of reasons. However, we can generally summarized as the following categories:
- Corrupted System Errors, which may caused by system updates released by Microsoft itself, especially for such a new system;
- Outdated Device Drivers. As we all known that old, missing or incompatible device drivers will cause intermittent BSOD STOP errors in many cases;
- Incompatible or Malfunctioning Hardware. It is not strange that the unseated hard drives, RAM chips, or unsecured connectors will generate a stop code;
- Running Older Version of System;
- Insufficient RAM;
- System affected Virus.
How to Fix Kernel Security Check Failure in Windows 11?
After going through all the possible reasons that may cause the Kernel Security Check Failure in Windows 11, we can find out the effective solutions to fix Kernel Security Check Failure in Windows 11 with security.
Method 1: Update Windows 11/10 to The Latest Version
Usually, the mandatory updates will be automatically applied to your Windows. But if now,these easy steps will help you get the latest Windows update: navigate to App Settings > App updates > Check for updates > Windows 11 tells you whether there is a update available or not > If Yes, click Download now to start the system updating. > Restart the computer.
Method 2: Update Device Drivers on Windows 11/10
As we mentioned in our older articles, there are two methods to update device drivers. The first one is to let Microsoft detect and update outdated drivers automatically:
- Search for Device Manger in the search box;
- Click on it to open the setting interface;
- Locate the device and right click on it;
- There will be the option – Update drivers. Click on it.
Then the outdated drivers will be updated and restart your computer to check whether Kernel Security Check Failure in Windows 11 has been fixed or not.
Another way to detect and updated device drivers is to use a third-party tool such as IObit Driver Booster. Or you can check more detailed options about How to Update Hardware Drivers on Windows 11.
Method 3: Run The SFC Scan
Only three steps are needed:
- Click search button and search for cmd, and then run it as administrator;
- Copy and paste sfc /scannow in the the command and press Enter;
- Restart your device and wait for the process to be completed;

Your error of Kernel Security Check Failure in Windows 11may have been resolved.
Method 4: Use Windows Memory Diagnostic Tool
Two steps to run:
First, click search button and search for Windows Memory Diagnostic, and then run it as administrator;
Second, click on the Restart now and check for problems (recommended) option and let the Windows Memory Diagnostic run.

Method 5: Run CheckDisk tool
The step is similar to the method 3, but not all the same:
- Click search button and search for cmd, and then run it as administrator;
- Copy and paste chkdsk C: /f /r /x in the the command and press Enter;
- Wait for the process to be completed and Restart your device;

Method 6: Run Antivirus Tool to Remove Virus
Usually, Windows Defender will do most the work for you. Otherwise, a third-party antivrus tool is also necessary for for you. How to Scan and Detect Malware on Windows 11 PC will show you how to detect and remove virus or malware on your Windows 11 computer.
Hope the above 6 methods will help you to fix Kernel Security Check Failure in Windows 11.