How to Fix BSOD ATTEMPTED_WRITE_TO_READONLY_MEMORY / KERNEL_SECURITY_CHECK_FAILURE Error on Windows 10/11

These Blue Screen of Death errors occur when a driver attempts to write to protected memory or fails critical security checks. The most effective resolution involves updating all device drivers, particularly for graphics and network adapters, while running System File Checker to repair corrupted Windows system files that trigger these kernel-level crashes.

Understanding the Kernel Security Failure

The KERNEL_SECURITY_CHECK_FAILURE stop code indicates that the Windows kernel detected corruption in a critical data structure. This is rarely caused by physical hardware failure and is almost always the result of software conflicts or buggy drivers. When the operating system performs routine integrity checks on memory structures, it expects them to remain unchanged unless modified by trusted system processes. If a third-party driver modifies this data incorrectly, the kernel halts the system immediately to prevent further damage or data loss. This specific error often points to issues with antivirus software, virtualization tools, or outdated chipset drivers. It is crucial to distinguish between a one-time glitch and a recurring pattern. If the blue screen appears only once after a long uptime, it may be a transient memory hiccup. However, if it happens during specific tasks like gaming or video editing, the culprit is likely an application or driver interacting poorly with the kernel. For users experiencing random BSODs even after a fresh reinstall, checking for persistent driver conflicts is essential as detailed in our guide on Windows 10 BSOD Randomly: Continues BSOD After Fresh Reinstall with Factory Drivers.

Updating Device Drivers Manually

Outdated or incompatible drivers are the primary suspects for both ATTEMPTED_WRITE_TO_READONLY_MEMORY and KERNEL_SECURITY_CHECK_FAILURE. While Windows Update often provides basic drivers, they may not be the latest versions optimized for your specific hardware. You should start by identifying the devices causing trouble through the Event Viewer or by recalling what you were doing when the crash occurred. Open the Start menu, type Device Manager, and press Enter. Expand categories such as Display adapters, Network adapters, and System devices. Right-click each major component and select Update driver. Choose Search automatically for drivers to let Windows find the best match. If this fails to resolve the issue, visit the manufacturer’s website directly. For example, if you have an NVIDIA or AMD graphics card, download the latest studio or game-ready drivers from their official support pages. Similarly, update your motherboard chipset drivers from the PC or motherboard manufacturer’s site. Avoid using third-party driver updater utilities, as they often install incorrect versions that exacerbate kernel instability.

Repairing Corrupted System Files

When the kernel detects security check failures, it sometimes means core Windows files have been tampered with or corrupted by malware or improper shutdowns. The built-in System File Checker tool can identify and replace these damaged files with clean copies from the Windows component store. This process requires administrative privileges and must be run from an elevated command prompt. To begin, right-click the Start button and select Terminal (Admin) or Command Prompt (Admin). Type the following command and press Enter:

sfc /scannow

Wait for the scan to complete. This process may take several minutes. If the tool reports that it found corrupt files and successfully repaired them, restart your computer and test the system. If SFC cannot fix the issues, proceed to the Deployment Image Servicing and Management tool, which repairs the underlying Windows image. Run the following command in the same elevated window:

DISM /Online /Cleanup-Image /RestoreHealth

After DISM completes, run sfc /scannow again to ensure all file integrity issues are resolved. This two-step repair process addresses deep-seated corruption that simple updates might miss.

Checking for Memory and Disk Errors

Although less common than driver issues, faulty RAM or bad sectors on your storage drive can cause these specific stop codes. The ATTEMPTED_WRITE_TO_READONLY_MEMORY error specifically suggests that a program tried to modify read-only memory, which can happen if the memory controller is failing or if disk errors cause misaligned data reads. Run the Windows Memory Diagnostic tool by searching for mdsched.exe in the Start menu. Select Restart now and check for problems. Your PC will reboot into a blue diagnostic screen where it tests your RAM for errors. Let this run to completion; any reported errors indicate faulty hardware that needs replacement. Additionally, check your hard drive health. Open an elevated command prompt and type:

chkdsk C: /f /r

This command scans the system drive for file system errors and bad sectors. You will need to confirm the operation and restart your computer. Note that this process can take a significant amount of time depending on the size of your drive. Ensure you have backed up important data before running this utility, as it attempts to recover readable information from physically damaged areas.

Disabling Conflicting Software

Certain applications, particularly those that inject code into other processes or manage low-level system resources, can trigger kernel security checks. Antivirus programs, firewall suites, and overlay software from gaming platforms are frequent offenders. If driver updates and system repairs do not solve the problem, try performing a clean boot to isolate the conflict. Press Win + R, type msconfig, and hit Enter. In the System Configuration window, go to the Services tab, check Hide Microsoft services, and then click Disable all. Next, switch to the Startup tab and open Task Manager to disable all startup items. Restart your computer. If the blue screens stop appearing, re-enable services and startups one by one to identify the specific software causing the crash. This methodical approach helps pinpoint problematic applications without guessing. For more insights on managing system changes and avoiding fake updates that might introduce such conflicts, refer to our article on How to Identify and Deal with Fake Change Windows Info.

Frequently Asked Questions

Can overclocking cause KERNEL_SECURITY_CHECK_FAILURE?

Yes, unstable overclocks on your CPU or RAM can lead to memory corruption that triggers this error. If you have enabled XMP profiles or manually increased clock speeds, revert to default settings in your BIOS to see if the stability returns.

Is it safe to ignore the ATTEMPTED_WRITE_TO_READONLY_MEMORY error?

No, ignoring this error risks data loss and potential system instability. It indicates a serious violation of memory protection rules, which usually stems from a buggy driver that needs immediate attention or replacement.

What should I do if Safe Mode also crashes?

If the system crashes in Safe Mode, the issue is likely related to core Windows components or pre-installed OEM drivers rather than third-party software. In this case, performing a system restore to a point before the errors began is the recommended next step.

Does disabling Fast Startup help with these BSODs?

Disabling Fast Startup can sometimes resolve kernel issues because it forces a full cold boot every time, clearing residual driver states. You can turn this off via Control Panel under Power Options > Choose what the power buttons do.

Are there any registry edits that fix this error?

There are no reliable registry edits to fix this specific error. Modifying the registry incorrectly can cause additional boot failures. Stick to driver updates, system file repairs, and hardware diagnostics for a safe resolution.