Recommended: Fix Windows Errors and Clear Junk Files in Minutes - Free Scan →Free scan · no reinstallRecommended: Crashes or Glitches? A Free Driver Scan Usually Finds the Culprit →Free scan · under a minuteRecommended: PC Feels Slow? A Free Scan Shows What's Dragging Windows Down →Free scan · Windows 10 & 11
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more

Did you encounter the kernel security check failure error on your Windows 11 PC? This guide features several solutions to fix this BSOD error.

Solution 1: Run Windows Update

Running an older version of the Windows 11 OS is most likely the cause for this BSOD error. In fact, it could be due to a bug in the current version of the OS that you are experiencing this error.

# Preview Product Price
1 Timetec 16GB KIT(2x8GB) DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800 Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 240 Pin UDIMM Desktop PC Computer Memory RAM(SDRAM) Module Upgrade Timetec 16GB KIT(2x8GB) DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800 Non-ECC Unbuffered... $37.99 Buy on Amazon
2 Timetec 8GB DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800(PC3L-12800S) Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook PC Computer Memory RAM Module Upgrade Timetec 8GB DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800(PC3L-12800S) Non-ECC Unbuffered... $21.99 Buy on Amazon
3 Timetec 16GB DDR4 2666MHz (PC4-2666V) PC4-21300 SODIMM Laptop RAM – 260-Pin 1.2V CL19 Non-ECC Unbuffered Memory Module for Laptop, Notebook, Mini PC, All-in-One Timetec 16GB DDR4 2666MHz (PC4-2666V) PC4-21300 SODIMM Laptop RAM – 260-Pin 1.2V CL19 Non-ECC... $96.99 Buy on Amazon
4 A-Tech DDR4 RAM 8GB 3200MHz PC4-25600 SODIMM Laptop Memory | Non-ECC PC4-3200AA CL22 260-Pin SO-DIMM 1.2V Notebook Computer Memory Upgrade Module A-Tech DDR4 RAM 8GB 3200MHz PC4-25600 SODIMM Laptop Memory | Non-ECC PC4-3200AA CL22 260-Pin SO-DIMM... $67.72 Buy on Amazon
5 Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin,... $117.90 Buy on Amazon

Hence, it’s possible that the bug has been fixed in the subsequent updates. Therefore, running the Windows update on your Windows 11 computer should be able to fix this error.

What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Outdated driversFree fix →System errors & instabilityFree fix →Junk files & broken settingsFree fix →Crashes & glitchesFree fix →
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

The subsequent procedures illustrate how to run the Windows update on your Windows 11 computer.

Popular on Amazon
Timetec 16GB KIT(2x8GB) DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800 Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 240 Pin UDIMM Desktop PC Computer Memory RAM(SDRAM) Module Upgrade
Timetec 16GB KIT(2x8GB) DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800 Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 240 Pin UDIMM Desktop PC Computer Memory RAM(SDRAM) Module Upgrade
  • [Color] PCB color may vary (black or green) depending on production batch. Quality and performance remain consistent across all Timetec products.
  • DDR3L / DDR3 1600MHz PC3L-12800 / PC3-12800 240-Pin Unbuffered Non-ECC 1.35V / 1.5V CL11 Dual Rank 2Rx8 based 512x8
  • Module Size: 16GB KIT(2x8GB Modules) Package: 2x8GB ; JEDEC standard 1.35V, this is a dual voltage piece and can operate at 1.35V or 1.5V
  • For DDR3 Desktop Compatible with Intel and AMD CPU, Not for Laptop
  • Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States
$37.99
Buy on Amazon
  1. Right-click the Start menu button on your Windows 11 taskbar and left-click Settings.
  1. When Settings open, click Windows Update on the left pane.
Fix Kernel Security Check Failure Error In Windows 11 By Running Windows Update
  1. Following that, click Check for updates on the window’s right pane.
  1. Then, Windows should start searching online for any available updates. If there are any updates, you will be prompted to install them.
Fix Kernel Security Check Failure Error In Windows 11 By Running Windows Update
  1. After updating your PC, reboot it, and this BSOD error should be fixed. If the error isn’t fixed, try the other solutions in this guide below.

Solution 2: Execute the SFC Scan

In some cases, this BSOD error can be caused by a corrupt system file. If that’s the case, executing the SFC scan on your Windows 11 should fix the issue.

Follow the steps below to execute the SFC scan on your PC.

  1. On your Windows 11 taskbar, click the Search button.
Fix Kernel Security Check Failure Error In Windows 11 By Executing The SFC Scan
  1. Following that, type “command prompt” in the search box above. Then, right-click Command Prompt under the Best match section and select Run as administrator.
  1. Consequently, you will receive a User Account Control prompt requesting if you want to permit the app to make changes to your device – select Yes to continue.
  2. After doing that, the Command Prompt application should open. Hence, input the command below and press the Enter key on your keyboard.
sfc /scannow
Fix Kernel Security Check Failure Error In Windows 11 By Executing The SFC Scan
  1. After the SFC scan has been completed, restart your Windows 11 computer. Optimistically, this BSOD error should be resolved.

    If it isn’t resolved, check out the last solution of this guide.

Solution 3: Run Windows Memory Diagnostic Tool

A memory-relating issue can also cause this BSOD error. Thus, running the Windows Memory Diagnostic tool should be able to fix the error.

Windows Errors? Fix Them Before They Spread

Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallFix My PC Now →

Crashes, No Sound, or Screen Glitches?

Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteFind the Right Drivers →
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Also popular on Amazon
Timetec 8GB DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800(PC3L-12800S) Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook PC Computer Memory RAM Module Upgrade
Timetec 8GB DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800(PC3L-12800S) Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook PC Computer Memory RAM Module Upgrade
  • [Specs] DDR3L / DDR3 1600MHz PC3L-12800 / PC3-12800 204-Pin Unbuffered Non ECC 1.35V CL11 Dual Rank 2Rx8 based 512x8
  • [Size] Module Size: 8GB Package: 1x8GB
  • [Voltage] JEDEC standard 1.35V, this is a dual voltage piece and can operate at 1.35V or 1.5V
  • [Compatibility] Compatible with DDR3 Laptop / Notebook PC, Mini PC, All in one Device
  • [Color] PCB Color is Green
$21.99
Buy on Amazon

Follow the subsequent procedures to run the Windows Memory Diagnostic tool on your Windows 11 computer.

  1. Click the Search button on your Windows 11 taskbar. Then, type ” windows memory diagnostic” in the search box and select the Windows Memory Diagnostic app from the search result.
  1. Then, click the Restart now and check for problems option.
Ensure you have saved anything you are working on before choosing this option.
Fix Kernel Security Check Failure Error In Windows 11 By Running Windows Memory Diagnostic Tool
  1. After your computer has been restarted, this BSOD error should be fixed.

Frequently Asked Questions

1. What causes the kernel security check failure error?

A variety of reasons can cause this error. However, some of the major reasons for this error are an outdated Windows OS and corrupt system files.

2. Is the kernel security check failure error a BSOD error?

Yes, the kernel security check failure error is a BSOD (Blue Screen Of Death) error.

Also popular on Amazon
Timetec 16GB DDR4 2666MHz (PC4-2666V) PC4-21300 SODIMM Laptop RAM – 260-Pin 1.2V CL19 Non-ECC Unbuffered Memory Module for Laptop, Notebook, Mini PC, All-in-One
Timetec 16GB DDR4 2666MHz (PC4-2666V) PC4-21300 SODIMM Laptop RAM – 260-Pin 1.2V CL19 Non-ECC Unbuffered Memory Module for Laptop, Notebook, Mini PC, All-in-One
  • Capacity – Single Module 16GB Speed up to 2666MHz Non-ECC Unbuffered 260-Pin 1.2V SODIMM.
  • Specs – PCB Color (Green or Black) and Rank (1Rx8 or 2Rx8) may vary depending on production batch. Performance and quality remain consistent across all Timetec products.
  • Compatibility – Designed for selected DDR4 Laptop, Notebook, Mini PCs, and All-In-One systems(AIO) that support 260-Pin SODIMM memory. NOT compatible with Desktop DIMM slots.
  • Installation – Plug-and-Play Upgrade, Quick and Easy to Install, no expertise required (please refer to your system's manual for guidelines).
  • Warranty – All Timetec products are high-quality and rigorously tested to meet stringent standards. Backed by Timetec Limited Lifetime Warranty and professional technical support based in the United States.
$96.99
Buy on Amazon
3. Can RAM cause the kernel security check failure error?

Yes, a faulty RAM or memory-related issue can cause the kernel security check failure BSOD error.

Performance · Free Tool

Windows Errors? Fix Them Before They Spread

Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.

Fix My PC Now →Free scan · no reinstall
Stop driver crashes →Fix Windows issues →
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
4. What is a kernel in a computer?

The kernel is a major component of an operating system. It serves as the interface between the PC’s hardware and its processes.

5. Is kernel a hardware or software?

The kernel is system software that is part of the operating system of a computer.

Also popular on Amazon
A-Tech DDR4 RAM 8GB 3200MHz PC4-25600 SODIMM Laptop Memory | Non-ECC PC4-3200AA CL22 260-Pin SO-DIMM 1.2V Notebook Computer Memory Upgrade Module
A-Tech DDR4 RAM 8GB 3200MHz PC4-25600 SODIMM Laptop Memory | Non-ECC PC4-3200AA CL22 260-Pin SO-DIMM 1.2V Notebook Computer Memory Upgrade Module
  • A-Tech 8GB RAM Module, DDR4 SO-DIMM 260-Pin, 3200MHz PC4-25600 (PC4-3200AA)
  • Non-ECC Unbuffered, JEDEC DDR4 Standard 1.2V Operating Voltage
  • Compatible with select Laptop, Notebook, Mini PC, and All-in-One (AIO) systems. Please verify your system's memory type, form factor, and maximum supported capacity before purchasing
  • Not compatible with desktop DIMM, non DDR4 memory, or ECC memory types such as RDIMM, LRDIMM, and ECC UDIMM
  • Increases available memory capacity to enhance system responsiveness, application performance, and multitasking capabilities.
$67.72
Buy on Amazon
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Conclusion

Getting the kernel security check failure error on your Windows 11 computer can be bothersome. Nevertheless, this guide has provided several solutions to fix this BSOD error.

Specifically, we learned how to fix the error by running the Windows update on the Windows 11 PC. This guide also taught us how to solve the error by executing the SFC scan and running the Windows Memory Diagnostic tool.

Do these 3 things before closing this tab:

1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problems
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

I hope one of the solutions included in this guide was able to fix this error on your Windows 11 PC. If it was, click on “Yes” beside the “Was this page helpful” question below.

Also popular on Amazon
Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A
Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A
  • Boosts System Performance:16GB DDR4 laptop memory that operates at 3200MHz to improve multitasking and system responsiveness for smoother performance
  • Easy Installation: Upgrade your laptop RAM with ease—no computer skills required Follow step-by-step how-to guides available at Crucial for a smooth, worry-free installation
  • Compatibility Guaranteed: Ensure seamless compatibility with your laptop by using the Crucial System Scanner or Crucial Upgrade Selector—get accurate recommendations for your specific device
  • Trusted Micron Quality: Backed by 42 years of memory expertise, this DDR4 RAM is rigorously tested at both component and module levels, ensuring top performance and reliability for your Mac system
  • ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-25600, Voltage = 1.2V, Rank and Configuration = 1Rx8 or 2Rx8
$117.90
Buy on Amazon

You may also express your thoughts and opinions by using the “Leave a Comment” form at the bottom of this page.

Finally, visit our Windows 11 Fix Guides page for more Windows 11 fix guides.

Quick Recap

Bestseller No. 1
Timetec 16GB KIT(2x8GB) DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800 Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 240 Pin UDIMM Desktop PC Computer Memory RAM(SDRAM) Module Upgrade
Timetec 16GB KIT(2x8GB) DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800 Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 240 Pin UDIMM Desktop PC Computer Memory RAM(SDRAM) Module Upgrade
For DDR3 Desktop Compatible with Intel and AMD CPU, Not for Laptop
$37.99
Bestseller No. 2
Timetec 8GB DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800(PC3L-12800S) Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook PC Computer Memory RAM Module Upgrade
Timetec 8GB DDR3L / DDR3 1600MHz (DDR3L-1600) PC3L-12800 / PC3-12800(PC3L-12800S) Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook PC Computer Memory RAM Module Upgrade
[Size] Module Size: 8GB Package: 1x8GB; [Compatibility] Compatible with DDR3 Laptop / Notebook PC, Mini PC, All in one Device
$21.99
Bestseller No. 3
Timetec 16GB DDR4 2666MHz (PC4-2666V) PC4-21300 SODIMM Laptop RAM – 260-Pin 1.2V CL19 Non-ECC Unbuffered Memory Module for Laptop, Notebook, Mini PC, All-in-One
Timetec 16GB DDR4 2666MHz (PC4-2666V) PC4-21300 SODIMM Laptop RAM – 260-Pin 1.2V CL19 Non-ECC Unbuffered Memory Module for Laptop, Notebook, Mini PC, All-in-One
$96.99
Bestseller No. 4
A-Tech DDR4 RAM 8GB 3200MHz PC4-25600 SODIMM Laptop Memory | Non-ECC PC4-3200AA CL22 260-Pin SO-DIMM 1.2V Notebook Computer Memory Upgrade Module
A-Tech DDR4 RAM 8GB 3200MHz PC4-25600 SODIMM Laptop Memory | Non-ECC PC4-3200AA CL22 260-Pin SO-DIMM 1.2V Notebook Computer Memory Upgrade Module
A-Tech 8GB RAM Module, DDR4 SO-DIMM 260-Pin, 3200MHz PC4-25600 (PC4-3200AA); Non-ECC Unbuffered, JEDEC DDR4 Standard 1.2V Operating Voltage
$67.72
Bestseller No. 5
Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A
Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A
$117.90

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

DriversCrashes, No Sound, or Screen Glitches?PerformancePC Slower Than It Used to Be?
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.