How to Fix CRITICAL_PROCESS_DIED Error in Windows 10 & 11 (Step-by-Step Guide)

Encountering a Blue Screen of Death with the stop code KERNEL_SECURITY_CHECK_FAILURE means that a critical data structure, driver, or system file failed a security check. Follow the step-by-step troubleshooting guide below to resolve the issue.

1. Run SFC and DISM Scans

Corrupted core system files or damaged operating system binaries are primary triggers for kernel security check failures.

• Press the Windows Key, type cmd, right-click Command Prompt, and select Run as administrator.
• Type DISM.exe /Online /Cleanup-image /Restorehealth and press Enter.
• Once complete, type sfc /scannow and press Enter to repair damaged system files.
• Restart your computer after the scans finish.

2. Update or Roll Back Problematic Drivers

Outdated or incompatible third-party drivers—especially antivirus software, network adapters, and graphics drivers—often fail kernel validation checks.

• Right-click the Start menu and select Device Manager.
• Look for any hardware devices displaying warning markers.
• Right-click the driver and choose Update driver, or select Roll Back Driver if the blue screen started immediately after a recent update.

3. Check Physical RAM Stability

Faulty memory modules can corrupt kernel data structures while they reside in active RAM.

• Press the Windows Key, type Windows Memory Diagnostic, and open the app.
• Select Restart now and check for problems (recommended).
• If you are using custom XMP or DOCP profiles in your BIOS, temporarily disable them to test for stability.

4. Check Disk Integrity with CHKDSK

Bad storage sectors can corrupt driver files or system registry components during startup.

• Open Command Prompt as an administrator.
• Type chkdsk C: /f /r and press Enter.
• Type Y when prompted to schedule the check on the next restart, then reboot your system.7