There have been registered quite a few useful methods which can help you resolve the problem and continue through the setup normally. Follow the solutions we have prepared below carefully!
What Causes the “Windows could not update the computer’s boot configuration” Error?
The error is often associated with the broken Boot manager utility which handles how your computer boots and what to load with priority. This can be solved by resetting it completely. In other cases, it’s UEFI which prevents the Windows setup from loading properly so you should disable secure boot in BIOS. Finally, the problem may be with your partition. If you are performing a clean install, please make sure you try to clean it with diskpart.
Solution 1: Repair the Boot Manager in Command Prompt
The Boot Manager is used to manage how your system boots, the boot priority, and how it handles Windows installation media when you insert it during startup. It can be reset and repaired easily if you simply restart into Advanced Startup and run several useful commands, which will be presented below.
WINDOWS XP, VISTA, 7: Windows Setup should open prompting you to enter the preferred language and time and date settings. Enter them correctly and choose the Repair your computer option at the bottom of the window. Keep the initial radio button selected when prompted with Use recovery tools or Restore your computer and click on the Next option. Choose Startup Repair (the first option) when prompted with the Choose a recovery tool selection.WINDOWS 8, 8.1, 10: You will see a Choose your keyboard layout window so choose the one you want to use. The Choose an option screen will appear so navigate to Troubleshoot » Advanced Options » Command Prompt
Solution 2: Disable UEFI in BIOS
There are several options you might want to change in your BIOS settings in order to enable the Windows Setup to install properly. The first option is called Secure Boot which uses UEFI. This prevents the proper installation. Besides that you should enable Legacy Support or Legacy Boot and set it to enabled.
Solution 3: Use the Clean Option in DiskPart
This method is a sort of a last resort for users who are performing a clean installation. This consists of cleaning the partition where you tend to install Windows. This is only recommended for clean installs, meaning you should backup the data from the partition. This should be enough to solve the problem but be careful to select the proper partition based on its number. Note: If you are unsure about which partition to select, the best way to do so is to check the actual size!
Fix: Boot Configuration Data Store Could Not Be OpenedFix: Windows Could Not Prepare the Computer to Boot Into the Next Phase of…Fix: Windows 11 Won’t Boot After Enabling Secure BootFix: Boot Configuration Data File Error 0xc0000034
