5 Solutions to "Fixboot Access Denied" on Windows 10 Or 11

Run "bootrec/fixboot" command but the access is denied? Here we gather 5 methods to help you solve the "fixboot access denied" error in Windows 11, 10, 8, 7.


By Emily / Updated on August 2, 2023

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Get "Access is denied" error while running bootrec/fixboot

If the Windows upgrade failed, or you cannot boot your computer, one way to fix such errors is to run the command "bootrec /fixboot". However, some users encounter the "Fixboot Access is denied" error message. According to the feedback of some users, Windows 10 1707 is most likely to meet bootrec/fixboot access denied error.

Fixboot Access Denied

How to fix the "FixBoot Access Denied" in Windows 10

To fix the "bootrec/fixboot access denied", the following methods are worth a try.

Method 1. Repair Bootloader

To repair Bootloader, you should prepare a Windows 10 installation disc.

Step 1. Boot from Windows 10 installation disc and press any key to continue.

Step 2. Then navigate to Repair your computer->Troubleshoot->Advanced options->Command Prompt.

Access CMD

Step 3. Type diskpart in the command prompt.

Step 4. Type the following command and press Enter after each command.

•list disk
•sel disk 0 (where 0 stands for the boot drive)
•list vol (note which volume is the EFI partition, mine is 4)
•sel vol 4
•assign letter=N:

Step 5. Type N: (the drive letter you just assigned and hit Enter.)

Step 6. After assigned a drive letter, you can format the EFI partition by typing format N: /FS:FAT32.

Step 7. Now, type bcdboot C:\windows /s N: /f UEFI and hit Enter. This command will repair your Bootloader.

Then try the bootrec /fixboot command again, fixboot access denied in Windows 10 could be solved.

Method 2. Run Startup Repair

Step 1. Boot from Windows 10 installation disc and press any key to continue.

Step 2. Then navigate to Repair your computer->Troubleshoot->Advanced options->Startup Repair.

Advanced options

Step 3. Wait for the result of the automatic repair and follow the instructions to solve problems.

Method 3. Repair your boot sector or rebuild BCD

Step 1. Still, boot from the installation disc.

Step 2. Navigate to Repair your computer->Troubleshoot->Advanced options->Command Prompt.

Step 3. Type the following command and press Enter after each command.

•Bootrec /rebuildbcd
•Bootrec /fixmbr
•Bootrec /fixboot

Rebuild BCD

Method 4. Run CHKDSK

Step 1. After booting the computer from the Windows installation disk, skip the first-screen language selection and choose to Repair your computer.

Step 2. Select Troubleshoot and then Command Prompt.

Step 3. In command prompt type chkdsk c: /r and hit Enter. This assumes Windows is installed on your C: drive. If the drive letter for your system partition is different, type the real one. (You can run diskpart > list volume to check.)

Method 5. Check disk and rebuild MBR using freeware

If the above mentioned 4 methods cannot solve fixboot access denied in Windows 10, you can turn to free AOMEI Partition Assistant Standard to make a bootable USB and enter into Windows PE to check disk error and rebuild MBR.

Step 1. Download AOMEI Partition Assistant and launch it in a running machine. Insert a USB drive.

Download Freeware Win 11/10/8.1/8/7/XP
Secure Download

Step 2. At the left column, click ToolsMake Bootable Media. Then click Next to continue.

Make Bootable Media

Step 3. Click USB Boot Device and then click Proceed.

Step 4. It will remind you the USB drive needs to be formatted and all the data on it will lose. If there are important files on it, make sure you have backed up the USB in advance.

Step 5. After making bootable USB drive, insert it into the computer which has a boot issue, change boot order and boot from. It will bring you to the main interface of AOMEI Partition Assistant in Windows PE.

Select Boot Drive

Step 6. Then you could use AOMEI Partition Assistant to check disk errors in the system hard drive with Disk Surface Test feature.

System Disk Test

Step 7. The Rebuild MBR feature allows you to repair Bootloader issue.

Rebuild System Disk MBR

Step 8. Restart the computer and check if the issue is solved.


As you know, system issues happen from time to time, and it may cause data loss. After solving fixboot access denied in Windows 10 issue, you may consider making an image backup in case of system crash.

And AOMEI Partition Assistant provides more functions to help you to manage your computer and disk. you can use it to unboot the USB to normal after repairing your PC. if you upgrade to professional edition, you can enjoy more features, including convert system disk between MBR and GPT partition styles, SSD Secure Erase Wizard, migrate OS between MBR and GPT hard drive with smooth boot, etc.

Emily · Staff Editor
Emily is an English editor of AOMEI Technology; she has a great passion for providing easy solutions for people to tackle with all disk or partition management problems. In addition to writing articles about disk/partition management, she also edits great tutorials on how to back up and restore disk for data security. In her spare time, she loves to learn computer skill to improve herself or stay with her family to enjoy a good day.