The Kernel Security Check Failure error is a common Blue Screen of Death (BSOD) that suddenly crashes your computer and forces a restart.
When this error occurs, you may see the message:
“Your PC ran into a problem and needs to restart.”
Stop Code: Kernel Security Check Failure
This problem usually indicates that Windows detected corrupted system data, driver conflicts, or hardware problems.
The issue commonly affects systems running:
- Windows 10
- Windows 11
In this guide, we will explain what causes Kernel Security Check Failure and how to fix it step by step.
What Causes Kernel Security Check Failure?
Several system issues can trigger this blue screen error.
The most common causes include:
- Corrupted system files
- Outdated or incompatible drivers
- Faulty RAM (memory errors)
- Hard drive corruption
- Malware infection
- Hardware conflicts
Because this error is related to the Windows kernel, troubleshooting usually focuses on repairing system files and drivers.
Method 1: Restart Your Computer
Sometimes the error occurs because of a temporary system conflict.
Restart your computer and check if the blue screen appears again.
If the error continues, move to the next solution.
Method 2: Update Device Drivers
Outdated drivers are one of the most common causes of Kernel Security Check Failure.
Steps:
- Right-click Start Menu
- Select Device Manager
- Expand device categories
- Right-click a device
- Select Update driver
Focus especially on:
- Graphics drivers
- Network drivers
- Storage controllers
Updating drivers can resolve conflicts that cause system crashes.
Method 3: Run Windows Memory Diagnostic
Faulty RAM can trigger kernel errors and system crashes.
Use the built-in memory testing tool:
- Windows Memory Diagnostic
Steps:
- Press Windows + R
- Type:
mdsched.exe
- Choose Restart now and check for problems
Your computer will restart and scan the RAM for errors.
Method 4: Run System File Checker
Corrupted system files can also cause this BSOD error.
Use the built-in repair tool:
- System File Checker
Steps:
- Open Command Prompt as Administrator
- Run the following command:
sfc /scannow
The system will scan and repair corrupted Windows files automatically.
Method 5: Repair Windows Image Using DISM
If SFC cannot fix the issue, repair the Windows image using:
- Deployment Image Servicing and Management
Run the command below:
DISM /Online /Cleanup-Image /RestoreHealth
This process may take several minutes but can resolve deeper system corruption.
Method 6: Check Your Hard Drive
Disk corruption may also trigger kernel errors.
Run the following command in Command Prompt (Admin):
chkdsk /f /r
This will scan your hard drive and repair bad sectors.
Method 7: Scan for Malware
Malware infections may damage critical system components.
Run a full system scan using:
- Microsoft Defender Antivirus
Removing malicious software may prevent system crashes.
Related Windows Error Fix Guides
If you encounter other Windows issues, these troubleshooting guides may help:
• How to Fix IRQL_NOT_LESS_OR_EQUAL Blue Screen
• How to Fix Windows Error 0xc000007b
• How to Fix Windows Update Error 0x8024401c
These guides cover some of the most common Windows errors.
Frequently Asked Questions
What is Kernel Security Check Failure?
It is a BSOD error that occurs when Windows detects corrupted system structures or driver conflicts.
Can faulty RAM cause this error?
Yes. Memory corruption is one of the most common causes of Kernel Security Check Failure.
Is Kernel Security Check Failure serious?
It can be serious if it occurs repeatedly because it may indicate hardware failure or system corruption.
Final Thoughts
The Kernel Security Check Failure error usually occurs due to driver issues, corrupted system files, or hardware problems.
Most users can fix the issue by:
- Updating device drivers
- Running Windows Memory Diagnostic
- Repairing system files using SFC
- Repairing Windows image using DISM
- Checking the hard drive for errors
- Scanning for malware
After applying these fixes, your system should run normally without blue screen crashes.