Microsoft Windows Error Code 0xC0000015: How to Fix It

Medium 2-4 hours (including chkdsk scan) Medium Severity Verified June 2026
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Error Code
0xC0000015
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
2-4 hours (including chkdsk scan)
Error code 0xC0000015 is a Windows system error that indicates the operating system tried to access a disk sector that does not exist. This typically points to a failing hard drive, corrupted file system, or damaged boot configuration. Follow these steps to diagnose and resolve the issue.
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Tools You'll Need

How to Fix Error Code 0xC0000015

  1. Check Disk for Errors

    The scan may take several hours. Do not interrupt it.

  2. Run System File Checker

  3. Check Hard Drive Health

    Back up important data immediately if the drive is failing.

  4. Rebuild Boot Configuration Data

    Ensure you have a Windows recovery drive or installation USB.

  5. Replace the Hard Drive

    This will erase all data on the old drive unless backed up.

Parts You May Need

Hard drive
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Hard drive
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Hard drive
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Hard drive
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When to Call a Professional

If you are uncomfortable using Command Prompt or if the hard drive is confirmed failing and you need data recovery, seek professional help. Also, if the error persists after replacing the drive, a technician can diagnose other hardware issues.

Frequently Asked Questions

What does error 0xC0000015 mean?
It means the operating system tried to read a disk sector that doesn't exist, usually due to a failing hard drive, file system corruption, or boot configuration errors.
Can I fix error 0xC0000015 without reinstalling Windows?
Yes, often by running chkdsk, SFC, or rebuilding the boot configuration. A clean install is only necessary if the disk is severely damaged.
Is data recovery possible with this error?
If the drive is physically failing, data recovery may be possible via professional services or by using data recovery software before the drive fails completely. Back up important data immediately.
Do I need a new hard drive?
Not always. Many cases are fixed by software repairs. However, if S.M.A.R.T. indicates imminent failure, replace the drive to prevent data loss.
How long does chkdsk /f /r take?
It can take anywhere from 30 minutes to several hours depending on the drive size and number of bad sectors.

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