Microsoft Windows Error Code 0xC0000061: How to Fix It

Medium 30-60 minutes Critical Severity Verified June 2026
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Error Code
0xC0000061
Brand
Microsoft Windows
Product Type
operating_system
Severity
Critical
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error 0xC0000061 on Windows indicates that the Master Boot Record (MBR) is corrupt or missing, preventing the system from booting. This critical error usually occurs after a failed update, disk write error, or malware attack. The following steps guide you through repairing the MBR using built-in Windows recovery tools.
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Tools You'll Need

How to Fix Error Code 0xC0000061

  1. Boot from Windows Installation Media

    Ensure your PC is set to boot from the installation media in BIOS/UEFI. Data loss is unlikely but back up important files if possible.

  2. Access Command Prompt from Repair Options

  3. Run Bootrec Commands

    Do not skip any command. Allow each to complete fully.

  4. Rebuild BCD if Necessary

    Do not delete the backup file unless you are sure the new BCD works.

  5. Restart and Check for Fix

  6. Alternative: Use Automatic Repair

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When to Call a Professional

If none of the steps work, the hard drive may have physical damage or the MBR corruption is beyond repair. Consult a data recovery professional if you need to recover files, or replace the hard drive.

Frequently Asked Questions

What causes error code 0xC0000061?
This error occurs when the Master Boot Record (MBR) is damaged or missing, often due to improper shutdown, failed updates, disk errors, or malware.
Can I fix error 0xC0000061 without a Windows installation disc?
Yes, you can create a recovery drive from another Windows PC using a USB flash drive (at least 16GB). Alternatively, some systems have a built-in recovery partition accessible via function keys (e.g., F11) at boot.
Will repairing MBR delete my files?
No, repairing the MBR does not affect personal files. However, if you rebuild the BCD and accidentally remove entries, you may lose ability to boot; your data remains intact.
What if bootrec /fixboot gives 'Access is denied'?
This often happens on UEFI/GPT systems. Use the command 'bootsect /nt60 SYS /mbr' instead, or switch to Legacy BIOS mode if available.
Can this error be caused by a failing hard drive?
Yes, physical bad sectors or drive failure can corrupt the MBR. If repairs fail repeatedly, run a disk check (e.g., chkdsk /f /r from Command Prompt) to assess drive health.

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