Microsoft Windows Error Code 0xC000002A: How to Fix It

Medium 1-2 hours Medium Severity Verified June 2026
Summarize with ChatGPTSummarize with ClaudeSummarize with Perplexity Add as Preferred Source on Google
Error Code
0xC000002A
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code 0xC000002A indicates that Windows attempted to unlock a memory location that was not locked. This usually occurs due to a corrupted system file, faulty RAM, or driver issues. Follow these steps to resolve the error.
Ad

Tools You'll Need

How to Fix Error Code 0xC000002A

  1. Perform a Clean Boot

  2. Run System File Checker (SFC)

    Do not close the Command Prompt until the scan finishes.

  3. Run DISM Tool

  4. Update Device Drivers

  5. Test RAM with Windows Memory Diagnostic

    Back up your data before running the memory diagnostic as the computer will restart.

  6. Perform a System Restore

    System Restore will revert recent changes but your personal files remain unaffected.

  7. Reset or Reinstall Windows

    Back up important data before resetting Windows. This may take a while.
Ad

When to Call a Professional

If the error persists after all steps, especially after a clean Windows reinstall, the issue may be hardware-related (e.g., faulty motherboard or RAM). Contact a professional technician to diagnose hardware.

Frequently Asked Questions

What causes error 0xC000002A on Windows?
Error 0xC000002A is caused by a memory management issue where Windows tries to unlock memory that wasn't locked. Common triggers include corrupted system files, faulty RAM, outdated drivers, or conflicts from third-party software.
Can error 0xC000002A be fixed without reinstalling Windows?
Yes, in many cases. Running SFC and DISM scans often resolves file corruption issues. Updating drivers and performing a clean boot can also fix the error without a full reinstall.
Is error 0xC000002A a sign of a failing hard drive?
Unlikely. This error is primarily related to memory (RAM) and system files, not the hard drive. However, a failing hard drive can cause other errors, so it's worth checking disk health using CHKDSK if you experience other symptoms.
How do I check if my RAM is faulty on Windows?
Use the Windows Memory Diagnostic tool (mdsched.exe). It will test your RAM for errors. You can also use third-party tools like MemTest86 for a more thorough test.
Does error 0xC000002A appear in Windows 10/11?
Yes, this error can occur on Windows 10 and 11. The same troubleshooting steps apply to both versions.

Related Error Codes