bootrec fixboot access denied windows
bootrec fixboot access denied windows

bootrec fixboot access denied windows

Bootrec Fixboot Access Denied Windows: A Comprehensive Guide

Greetings, readers!

If you’re facing the "bootrec fixboot access denied" error while attempting to repair your Windows boot sector, don’t panic! In this comprehensive guide, we’ll delve into the causes and provide effective solutions to resolve this issue and get your system back up and running smoothly.

Understanding the "Bootrec Fixboot Access Denied" Error

The "bootrec fixboot access denied" error typically occurs when you try to use the bootrec utility in the Windows Recovery Environment (WinRE) to repair your boot sector, but you lack the necessary permissions to make the changes. This can happen due to several reasons, including:

  • Enabled User Account Control (UAC) settings
  • Corrupted file system permissions
  • Restrictions imposed by security software

Resolving the Error

1. Disable UAC

If UAC is enabled, it can prevent you from making changes to protected system files, including the boot sector. To disable UAC:

  • Log in to an administrator account.
  • Open the Control Panel.
  • Click "User Accounts" or "User Accounts and Family Safety."
  • Choose "Change User Account Control Settings."
  • Move the slider to the lowest setting ("Never notify").
  • Click "OK" and restart your computer.

2. Reset File System Permissions

Corrupted file system permissions can also cause the "access denied" error. To reset file system permissions:

  • Boot into WinRE using a bootable USB or DVD.
  • Open a Command Prompt.
  • Type the following commands:
list volume
select volume [volume number]
takeown /f [drive letter]:
icacls [drive letter]: /grant everyone:f

3. Exclude Bootrec from Antivirus Scanning

Some antivirus programs may quarantine or block the bootrec utility, hindering its operation. To exclude bootrec from antivirus scanning:

  • Open the antivirus program’s settings.
  • Locate the "Exceptions" or "Whitelist" section.
  • Add the following file path to the exclusion list:

Troubleshooting Table

Solution Description
Disable UAC Temporarily disable User Account Control to grant administrator privileges.
Reset File System Permissions Reassign ownership and permissions to the boot sector to resolve corruption issues.
Exclude Bootrec from Antivirus Scanning Prevent antivirus software from interfering with the bootrec utility.
Run CHKDSK Scan and repair any corrupted sectors on the boot drive.
Rebuild the BCD Recreates the Boot Configuration Data (BCD) store to restore the boot process.
Clean and Prepare the Disk Initialize the target disk before creating new partitions and installing Windows.


By following these steps, you should be able to resolve the "bootrec fixboot access denied" error and successfully repair your Windows boot sector. If you encounter any further issues or have additional questions, feel free to check out our other articles for more troubleshooting tips and solutions.

FAQ about "bootrec fixboot access denied Windows"

1. Why am I getting "Access Denied" when trying to use bootrec fixboot?

You need to run the Command Prompt with administrative privileges to perform this command.

2. How do I fix "Access Denied" on bootrec fixboot?

Run the Command Prompt as Administrator, type "diskpart", then "list disk", select the disk containing the Windows installation, type "select disk ", type "list partition", select the partition containing the Windows installation, type "select partition ", and finally, type "bootrec /fixboot".

3. What is bootrec fixboot used for?

It rebuilds the boot sector of the system partition.

4. What is the difference between bootrec /fixboot and bootrec /fixmbr?

/fixboot fixes the boot sector while /fixmbr fixes the Master Boot Record (MBR).

5. Can I use bootrec without a Windows installation disc?

Yes, you can use the bootrec command from the Windows Recovery Environment (WinRE).

6. How do I access WinRE?

Restart your computer, force shut it down three times during the startup process, and it will automatically enter WinRE.

7. What are some other possible causes of "Access Denied"?

  • Insufficient user permissions
  • Corrupted system files
  • Hardware issues

8. What if bootrec fixboot doesn’t fix the issue?

Try other bootrec commands such as /scanos, /rebuildbcd, or /fixmbr.

9. Is it safe to use bootrec commands?

Yes, if used correctly, bootrec commands are generally safe to use. However, always back up your data before making any changes.

10. Where can I find more information about bootrec?

You can refer to Microsoft’s official documentation on the bootrec command: