How To

How to Fix the Bootrec /Fixboot Access Is Denied Error in Windows

The Windows Recovery Environment (RE) provides the Bootrec command-line tool to address startup problems and boot failures. The boot sector, the master boot record (MBR), and the boot configuration data (BCD) may all be fixed by it.

When the current boot data is faulty, the bootrec /fixboot command creates a new boot sector on the existing system disc. On rare occasions, nevertheless, this command might not function because of an improper EFI structure or a BCD file problem.

Using the answers in this article, you may rapidly address the most common causes of the “bootrec /fixboot access is denied” problem.

Beginning Startup Repair

The first step in fixing the “bootrec /fixboot” error is to run Startup Repair, which will enable Windows to identify and fix common issues that hinder a smooth startup of your computer. A large number of users have successfully used Startup Repair to fix a variety of Windows boot and file corruption issues.

Enter the Windows Recovery Environment to perform Startup Repair. Restart your machine after allowing the scan to finish, and then try executing the bootrec /fixboot command once more.


Your boot data may be corrupted by disc issues, resulting in the “bootrec /fixboot access denied” error. You will be forced to repair the damaged data before retrying if the files necessary to run the command are located in bad sectors.

Launch the CHKDSK software from the Command Prompt (in Windows RE) to let Windows to examine your disc for damaged sectors and other repairable problems. The findings of the scan will be shown on the screen if it is effective in addressing the problems. Run the bootrec /fixboot command one again to confirm if it worked after that.

EFI Bootloader reinstallation

You’ll need to rebuild the EFI (Extensible Firmware Interface) bootloader on your system disc if none of the aforementioned methods are successful. This updates every boot setting on the EFI partition, enabling you to properly use the bootrec /fixboot command.

There are multiple phases in this fix. Before transferring boot data to an EFI partition, you must determine which particular EFI partition has to be updated.

  • By doing the actions listed in Section 1 above, you can access the Windows RE.
  • Press the “Troubleshoot” button on the Automatic Repair screen.
  • After that, choose “Advanced Options.”
  • Deciding on “Command Prompt.”
  • Use the “diskpart” programme to find the EFI partition. Press the Enter key after entering the diskpart command.
  • Enter list disc to view all of the discs on your computer.
  • Find the disc on which your Windows installation is stored. It will be marked as a GPT partition by an asterisk next to the “Gpt” column. If your PC has more than one Windows disc with the GPT type, look in the “Size” column to find the target disc.
  • Click Enter after typing disc 0 to choose your drive. Replace “0” in your case with the actual disc name.
  • Enter list vol followed by Enter to see a list of every volume or partition on your Windows disc.
  • Search the list for the EFI partition. Usually, it is tiny and in “FAT32” format.
  • Type choose Vol 1 and press Enter to select it. Replace “1” in your situation with the appropriate volume number.
  • Change the volume’s letter. You may check that the letter isn’t already assigned to another volume by entering assign letter=L. In your case, change “L” to the appropriate letter.
  • Enter “diskpart” into the exit command window.
  • To use the newly assigned drive letter to select the EFI partition, type L: and hit Enter. Change this with the letter that best suits your circumstance.
  • Copy the required boot files to the EFI partition using the command line: Windows /s /f UEFI bcdboot C:Windows. Substitute the letter of the freshly created drive for “L:”.
  • To close the Task Prompt, type the command “exit”.
  • Return to the Automatic Repair screen and click “Continue” to restart your computer. Make an attempt at bootrec /fixboot.

Use bootable media to execute the command

Use a bootable USB device to run the command to get around the “bootrec /fixboot access is denied” issue. This solution enables you to recover the boot files on your Windows disc by running the bootrec /fixboot command on a fresh, functional external drive. Make a bootable disc on another computer if you are unable to boot to the desktop.

Once you’ve made a bootable USB stick, boot onto it and select “Repair your computer” before beginning the Windows installation procedure. Use the bootrec /fixboot command from the Command Prompt after restarting Windows.


Why do my Windows files keep being damaged?

File corruption in Windows is frequently caused by malware. Serious malware has the ability to live on your drive, evade antivirus programmes, and harm crucial system data. Corrupted files can be caused by a power outage during data saving, damaged disc sectors, underlying issues with your Windows copy, and other hardware issues. Regularly check your system for malware to prevent file corruption.

The EFI partition contains what exactly?

The storage partition known as the EFI partition, or ESP, houses all of the UEFI bootloaders, programmes, and drivers necessary for a successful UEFI boot. When a new version of Windows is installed on a disc, Windows automatically creates an OS-independent partition. It contains a 100MB partition and is stored in FAT32 file format. The EFI partition is secured by Windows, and using Disc Management you cannot delete it.

Muhammad Rouf

I am Muhammad Rouf, the founder of TechFlax. I am expert in search engine optimization (SEO) and professional blogger. I think that everyone should be able to use technology to better their lives. We researched, analysed, and presented on this platform using all of our knowledge and we created a platform to develop a good relationship with the online community. In order for every user of social media to have access to the informational globe, we also covered social media through Tech Flax.

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