When using the bootrec /fixboot command, Windows users frequently encounter “Access Denied” errors, particularly when attempting to repair the Master Boot Record (MBR) or Boot Configuration Data (BCD). This obstacle, while frustrating, is not insurmountable. This article aims to explain why Bootrec Fixboot Access Denied error occurs and how to resolve it.
Causes for “Bootrec /Fixboot Access Denied”
- BCD Corruption: The Boot Configuration Data may be corrupted, leading to access issues.
- Secure Boot: The Secure Boot feature in the BIOS/UEFI settings can sometimes interfere with repair operations.
- File System Errors: Errors within the file system on the boot partition can prevent successful execution of the
Solutions to Fix “Bootrec /Fixboot Access Denied”
If you’ve recently encountered the Bootrec /Fixboot Access Denied error message, try some of the solutions listed below.
Solution 1: Check Secure Boot Configuration
Disabling Secure Boot temporarily might resolve the access denied issue.
Here’s how to check Secure Boot configuration:
- Restart your PC and enter BIOS/UEFI settings (usually by pressing F2, F10, Del, or Esc during boot).
- Navigate to the Security or Boot tab and locate the Secure Boot option.
- Disable Secure Boot, save changes, and exit the BIOS/UEFI.
- Try the
bootrec /fixbootcommand again in WinRE.
Solution 2: Rebuild the BCD to fix Bootrec Fixboot Access Denied
If the BCD is corrupted, rebuilding it might solve the problem.
Here’s how to rebuild the BCD:
- Boot from Windows installation media and launch Command Prompt from WinRE.
bootrec /rebuildbcdand press Enter.
- If prompted, type
Yto add the installation to the boot list.
Solution 3: Use Diskpart to Prepare the Partition
Sometimes, setting the system partition as active using Diskpart can resolve the issue.
Here’s how to use Diskpart:
- Open Command Prompt from WinRE.
diskpartand press Enter.
list diskand press Enter to display all disks.
select disk X(where X is the number of the disk with the Windows installation) and press Enter.
list partitionand press Enter.
select partition Y(where Y is the number of the System partition) and press Enter.
activeand press Enter to set the partition as active.
- Exit Diskpart by typing
Solution 4: Assign a Drive Letter to the EFI Partition
If the EFI partition doesn’t have a drive letter, assigning one can sometimes allow the
bootrec /fixboot command to execute successfully.
Here’s how to assign a drive letter:
- Access Command Prompt via WinRE and enter
- Select the disk and partition as described in the previous steps.
assign letter=Z(where Z is a free letter) and press Enter.
- Exit Diskpart and try the
bootrec /fixbootcommand again.
Solution 5: Manually Copy the Boot Files
bootrec /fixboot still fails, manually copying the boot files from the Windows directory might work.
Here’s how to manually copy the boot files:
- Access Command Prompt from WinRE.
- Identify the Windows and EFI partition letters by using
diskpartor by browsing through the Command Prompt.
- Use the
xcopycommand to copy the boot files from the Windows directory to the EFI partition.
Finally, if you encounter a Bootrec Fixboot Access Denied error, follow the steps outlined in this article. Understanding the causes and applying the solutions provided will assist you in resolving your system’s boot issues.
It’s all about methodical troubleshooting to get your computer back up and running. Stick to the instructions, and your system will be operational in no time.