Microsoft Windows Error Code 0xC0000012: How to Fix It

Medium 30 minutes to 2 hours Medium Severity Verified June 2026
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Error Code
0xC0000012
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30 minutes to 2 hours
Error code 0xC0000012, also known as STATUS_WRONG_VOLUME, indicates that Windows encountered a file system operation on the wrong disk volume. This typically occurs when a removable drive is unplugged unexpectedly or a volume mount point is corrupted. Follow these steps to identify and resolve the issue.
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Tools You'll Need

How to Fix Error Code 0xC0000012

  1. Restart Your Computer

  2. Check Removable Drives

    Do not unplug drives without safely ejecting first; this can corrupt data.

  3. Run CHKDSK on All Drives

    CHKDSK can take a long time on large drives. Do not interrupt it.

  4. Run a System File Checker Scan

  5. Repair Volume Mount Points

    Be careful not to delete data; only change drive letters if you're sure.

  6. Perform a Clean Boot

    After troubleshooting, reverse the clean boot changes.

  7. Use System Restore

    System Restore will not affect personal files but may uninstall recent apps.

  8. Reset or Reinstall Windows

    Back up all important data before resetting or reinstalling.
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When to Call a Professional

If you are unable to boot into Windows or the error persists after resetting, consider contacting a professional technician or Microsoft support. Data recovery specialists may be needed if important files are on a failing drive.

Frequently Asked Questions

What causes Windows error 0xC0000012?
This error, STATUS_WRONG_VOLUME, occurs when the file system tries to access a volume that is not present or has been changed. Common causes include external drives removed without safely ejecting, volume mount point corruption, or disk errors.
Can I fix error 0xC0000012 without losing data?
Yes, most fixes like CHKDSK, SFC, and System Restore do not delete personal files. However, always back up critical data before any major repair.
Will a system restore delete my files?
No, a System Restore does not affect your personal files like documents, photos, or music. It only reverts system files and settings.
Do I need a new hard drive if I see this error?
Not necessarily. 0xC0000012 is often a logical error, not a hardware failure. However, if CHKDSK finds bad sectors repeatedly, your drive may be failing. Backup data and consider replacement.
Can this error occur on Windows 10 and 11?
Yes, error 0xC0000012 can appear on any modern Windows version, including Windows 10 and 11.

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