Microsoft Windows Error Code 0xC0000029: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
0xC0000029
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code 0xC0000029 (STATUS_INVALID_UNWIND_TARGET) occurs when Windows encounters a corrupted system file or driver issue during boot. This typically prevents your PC from starting normally. Follow these steps to resolve the issue and get your system running again.
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Tools You'll Need

How to Fix Error Code 0xC0000029

  1. Boot into Safe Mode

    If F8 doesn't work, interrupt the boot process three times (by pressing the power button) to trigger Automatic Repair, then navigate to Troubleshoot > Advanced options > Startup Settings > Restart > Safe Mode.

  2. Run System File Checker (SFC)

  3. Run DISM Tool

  4. Check for Driver Issues

  5. Perform System Restore

    This will undo recent system changes but not affect your personal files.

  6. Use Startup Repair

    You need a Windows installation media (USB or DVD) to perform this step.

  7. Reset or Reinstall Windows

    Back up your data first if possible. A clean install will erase all data on the system drive.
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When to Call a Professional

If you are unable to boot to Safe Mode or WinRE, or if the error persists after performing a clean install, the issue may be hardware-related (e.g., failing hard drive or RAM). Contact a professional technician for hardware diagnostics.

Frequently Asked Questions

What does error code 0xC0000029 mean?
Error 0xC0000029 (STATUS_INVALID_UNWIND_TARGET) indicates that Windows encountered a corrupted system file or incompatible driver that prevents the OS from loading properly.
Can I fix error 0xC0000029 without losing data?
Yes. Using Safe Mode, System File Checker, System Restore, or Startup Repair can resolve the issue without affecting personal files. Only a clean install will erase data.
How do I create a Windows installation USB if my PC won't boot?
Use another working PC to download the Windows Media Creation Tool from Microsoft's website. Run the tool, choose 'Create installation media', and follow the prompts to create a bootable USB drive.
Is error 0xC0000029 caused by a virus?
While a virus could corrupt system files, the error is more commonly caused by incomplete updates, driver conflicts, or accidental system file corruption. Run a full antivirus scan in Safe Mode if you suspect malware.
What if I don't have a Windows installation media?
You can request one from Microsoft or borrow from a friend. Alternatively, try booting to the Advanced Boot Options menu (F8) to access Safe Mode or use the built-in recovery partition if available (check your PC manufacturer's instructions).

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