AOMEI Partition Assistant
Windows 10 Boot Repair Fixboot Access Denied
Windows 10 boot repair fixboot access denied error is a Command Prompt problem that will impede you to fix boot issues. In this post, you’ll see how to solve this problem in several ways.
By Lucas / Updated on October 31, 2024
Overview of Windows 10 boot repair fixboot access denied error
The "Windows 10 boot repair fixboot access denied" error typically arises when users attempt to repair a corrupted or malfunctioning boot configuration on their Windows 10 system. This error generally occurs during the execution of the bootrec /fixboot command in Command Prompt, intended to repair the boot sector of the system partition. When the "access denied" message appears, it prevents the command from running successfully, hindering the ability to boot into Windows properly.
🧐 Why "fixboot access denied" error happen?
- Boot Configuration Data (BCD) Problems: When the BCD store is damaged or misconfigured, it can block the bootrec /fixboot command from executing correctly. This often results from improper shutdowns, failed updates, or disk errors.
- Permission Limitations: Running the command without administrative privileges can trigger an "Access is denied" message. Make sure to open Command Prompt as an administrator.
- Secure Boot Conflicts: Secure Boot may sometimes interfere with bootrec commands. Disabling Secure Boot in the BIOS/UEFI settings can often resolve this issue.
- Active Partition Misconfiguration: If the system partition is not marked as active, the bootrec /fixboot command may fail. Setting the correct partition to active can help fix this.
- UEFI and GPT Setup: On systems using UEFI with GPT partitioning, this command may not function as expected. Ensuring that the system is properly configured for UEFI and GPT can often resolve compatibility issues.
5 solutions to fix the "FixBoot Access Denied" in Windows 10
In this part, we'll show you how to fix "Windows 10 boot repair fixboot access denied" issue in 5 ways. But first, you need to prepare a Windows 10 installation media for your system, it can be installation CD/DVD or you can create a Windows 10 Installation USB for repair.
Method 1. Repair Windows 10 Bootloader
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 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. Do Startup Repair
Step 1. Boot from Windows 10 installation media and press any key to continue.
Step 2. Then navigate to Repair your computer->Troubleshoot->Advanced options->Startup Repair.
Step 3. Wait for the result of the automatic repair and follow the instructions to solve problems.
Method 3. Rebuild BCD to repair boot sector
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
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. Use multifunctional tool to efficiently fix "fixboot access denied"
For users lacking experience, fixing "bootrec fixboot access denied" error using Command Prompt can be difficult. Calm yourself! Not only does a versatile program like AOMEI Partition Assistant Professional allow consumers easily manage their hard drives and partitions, but it also offers repair of certain system boot problems, thereby restoring the machine to normal.
Just a few clicks will swiftly generate a bootable repair USB using our strong Boot Repair program, then run an automatic repair with it. AOMEI Partition Assistant Professional is your dependable choice if you want a quick approach to execute Windows 10 boot repair.
100% SecureStep 1. Install and launch AOMEI Partition Assistant on a working PC, and connect a USB drive to it.
Step 2. Click Recover > Boot Repair on the main interface.
Step 3. Select the create a bootable disk option to create a WinPE bootable media.
Step 4. Connect the drive to the computer that cannot function normally. And then enter BIOS settings to change the boot order to make boot computer from it. Once you log in successfully, it will automatically load the Boot Repair tool and start the boot entries scan process.
Step 5. Once the process completes, you can see all boot entries on the interface. Select the repairable boot entries you want to repair and click the Repair button.
Step 6. After successful repair, remove the bootable USB drive and boot the PC from the original system drive.
Besides the "Boot Repair" function, you can also try the "Rebuild MBR", and "Check Partition" features.
Conclusion
When the error "Windows 10 boot repair fixboot access denied" happens on your computer, you can try the above solutions in this post. If you want an easy-to-use tool, AOMEI Partition Assistant will be your robust solution. Not only can this tool allows you easily run boor repair, but also you can try many other functions to make your computer resources more balance.
FAQs about Windows 10 boot repair fixboot access denied error
1. Why do I need administrator privileges to run bootrec /fixboot in Windows 10?
The bootrec /fixboot command makes changes to the boot sector and other core system files, which require elevated permissions. Without opening Command Prompt as an administrator, Windows will restrict access to these critical commands, resulting in an "Access Denied" message. Always launch Command Prompt with administrative rights when attempting boot repairs.
2. How can Secure Boot interfere with the bootrec /fixboot command?
Secure Boot, a BIOS/UEFI feature, can prevent unauthorized changes to the boot environment, blocking commands like bootrec /fixboot in some cases. Temporarily disabling Secure Boot in the BIOS/UEFI settings can allow the command to execute. Remember to re-enable it once troubleshooting is complete to maintain system security.
3. What steps should I take if I encounter "Access Denied" even with administrator privileges?
If you still see "Access Denied" after running as an administrator, consider these steps:
- Boot from a Windows installation media and open Command Prompt from the recovery environment.
- Temporarily disable Secure Boot in BIOS/UEFI settings.
- Use bootsect /nt60 instead of bootrec /fixboot as an alternative command for repairing the boot sector.
