By AOMEI / Last Updated December 9, 2019

Get “Access is denied” error while running bootrec/fixboot

If the Windows upgrade is 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 "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. You can fix bootrec/fixboot access denied error through following one or more solutions listed below.

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.

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:

  • Exit

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

Step 6. After you have assigned a drive letter Using Diskpart, you can format the EFI partition using the following command.

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->Automatic Repair.

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 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 AOMEI Partition Assistant

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.

Step 2. At the left column, click Make 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, boot the computer which has a boot issue. It will bring you to the main interface of AOMEI Partition Assistant in Windows PE.

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 data loss.