Microsoft Windows Error Code 0xC0000026: How to Fix It

Medium 1-2 hours High Severity Verified June 2026
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Error Code
0xC0000026
Brand
Microsoft Windows
Product Type
operating_system
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code 0xC0000026, also known as STATUS_INVALID_DISPOSITION, indicates that the Windows operating system detected an invalid exception handler disposition during boot or runtime. This often prevents Windows from starting or causes sudden crashes. The error is commonly caused by corrupted system files, driver conflicts, or issues with the boot configuration.
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Tools You'll Need

How to Fix Error Code 0xC0000026

  1. Boot into Safe Mode

    If you cannot access Safe Mode, use a Windows installation media to boot into Repair Mode.

  2. Run System File Checker (SFC)

  3. Check Disk for Errors

  4. Repair Boot Configuration Data (BCD)

    If you receive 'Element not found' error when running bootrec /fixboot, try 'bootsect /nt60 SYS /mbr' instead.

  5. Perform System Restore

    System Restore will not affect your personal files, but may remove recently installed programs and updates.

  6. Check for Driver Conflicts

  7. Reset Windows (Keep or Remove Files)

    Back up important data if possible before resetting.
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When to Call a Professional

If none of the above steps resolve the error, or if you encounter additional hardware-related errors, it may indicate a failing hard drive or memory module. Contact a professional technician for hardware diagnostics and data recovery.

Frequently Asked Questions

What causes Windows error 0xC0000026?
This error is caused by a corrupted system file, boot configuration issue, driver conflict, or hardware failure. It often appears after a failed update, improper shutdown, or malware infection.
Can I fix error 0xC0000026 without reinstalling Windows?
Yes, in most cases you can fix it using Safe Mode, System File Checker, Boot Configuration Data repair, or System Restore without reinstalling.
How do I boot into Safe Mode if Windows won't start?
Interrupt the boot process three times by pressing the power button during startup to trigger Automatic Repair, then select Advanced options > Troubleshoot > Advanced options > Startup Settings > Restart > Safe Mode.
Will resetting my PC delete my files?
Using the 'Reset this PC' option with 'Keep my files' will preserve your personal files but remove apps and settings. Choosing 'Remove everything' will delete all data.
Is error 0xC0000026 a sign of hardware failure?
It can be. If software repairs fail, the issue may stem from a failing hard drive, bad RAM, or a damaged motherboard. Run memtest86+ for RAM and check disk health with CrystalDiskInfo.

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