How to fix UEFI boot problems in Windows 8, 8.1, 10

By: Andrew Wafer
3 minute read
fix uefi

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Windows 8, 8.1 and Windows 10 boot problems might be quite annoying since the troubleshooting process is usually complex. Because of that most of the users are choosing to reinstall the Windows system instead of fixing it.

If you want to try to fix your Windows 8, Windows 10 UEFI boot problems,  follow the guidelines from below.
uefi_up_480
UEFI, or if you prefer Unified Extensible Firmware Interface is a protocol that is replacing the popular BIOS with a new software that is adding some important advantages such as improved security measures, faster startup times, support for disks larger than 2.2 TB and lot more.

Now a broken UEFI means that you have a broken bootloader which also means that you won’t be able to reboot or power on your Windows 8 / Windows 8.1/ Windows 10 device. You can also have a look at these related useful tips: learn how to fix chkdsk in Windows 8, 10, or how to view BSOD details in Windows.

Therefore, fixing UEFI boot problems is essential especially if you want to use your device without having to reinstall the Windows 8, 8.1, 10 OS system. So, if I have convinced you to follow this tutorial, don’t hesitate and try the troubleshooting solution from below.

How to Fix Windows 8 UEFI Boot Problems

  1. Use diskpart and recreate Boot Configuration Data
  2. Repair your computer

1.  Use diskpart and recreate Boot Configuration Data

  1. Insert the Windows 8 / Windows 8.1 installer disk on your computer.
  2. Reboot and press any key in order to boot from Windows DVD.
  3. Wait while the Installer sequence is loading all the files.
  4. The click on “Next” and “Repair your computer”.repair computer
  5. Furthermore, go to “Advanced options” and pick “Command Prompt”.cmd from wind 8 installer
  6. Good, now a cmd window will be displayed on your device.
  7. On the cmd window type “diskpart”.
  8. Find out on which disk you have installed Windows 8 / Windows 8.1 by entering “list disk”.
  9. Usually the Windows system is installed on disk 0 – if not change the following command accordingly to the number of your disk.
  10. In cmd type “sel disk 0”.
  11. You have selected your disk; now type “list vol” in order to show all the partitions.diskpart
  12. The UEFI partition should be a FAT32 file system – let’s say that is volume number 3.
  13. Select your partition by typing the “sel vol 3” command and assign a new letter to your volume by using the command “assign letter=b” (you can set any letter you want, this is only an example).assign letter
  14. Enter “exit” and press enter.
  15. Up next you will need to type “cd /d b:\EFI\Microsoft\Boot\” followed by “bootrec /fixboot” in order to repair boot record.
  16. Then you have to recreate the Boot Configuration Data (BCD), so in cmd type “ren BCD BCD.old” followed by “bcdboot c:\Windows /l en-us /s b: /f ALL”.
  17. Perfect; all you have to do is to reject the Windows 8 / Windows 8.1 disk and to reboot your device as you are done.

For various PC problems, we recommend to use this tool.

This tool will repair most computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Quickly fix PC issues and prevent others from happening with this software:

  1. Download ReimagePlus (100% safe download and endorsed by us).
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues.

2. Repair your computer

Another way to fix UEFI boot issues in Windows 10 is to simply repair your computer. This method is somehow similar to the first steps of the solution listed above, yet it’s less complex, so if you’re an average Windows user, you may want to use this solution first. Here are the steps to follow:

  1. Insert the Windows 10 install disk/ install USB to your computer
  2. Restart the PC > select boot from the disk/USB
  3. On the Install now screen > select Repair your computer
  4. Go to Troubleshoot > click on Automatic Repair
  5. Choose the problematic account from the list > confirm your choice and wait for the repair process to complete.

So, that was how you can easily fix Windows 8, 10 UEFI Boot Problems. Do feedback us by using the comments field from below and share your other Windows 8, or Windows 8.1 issues with us in order to get technical assistance.

Read AlsoDisable ‘You Have New Apps That can Open This Type of File’ in Windows 8, 8.1, 10

If you’ve got additional tips and suggestions on how to fix UEFI boot problems, you can list them in the comments below.


Editor’s Note: This post was originally published in May 2014 and has been since completely revamped and updated for freshness, accuracy, and comprehensiveness.


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