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Fix ‘Windows 11 Installation Assistant Error 0x8007007f’ issue

by Tech Desk
by Tech Desk

This guide is about Fix ‘Windows 11 Installation Assistant Error 0x8007007f’ issue. So read this free guide, Fix ‘Windows 11 Installation Assistant Error 0x8007007f’ issue step by step. If you have query related to same article you may contact us.

Fix ‘Windows 11 Installation Assistant Error 0x8007007f’ issue – Guide

You can download and install the Windows 11 update now, but some users are experiencing various issues during the installation process. Microsoft has confirmed at least three known issues with Windows 11, but there are several installation issues that affect a small subset of users.

To download Windows 11 version 21H2, you can check if it is available on Windows Update. If not, you can use Microsoft’s new Windows 11 Setup Assistant tool to force the installation of the new operating system. However, there is one problem – a generic error message. For some users, installing Windows 11 through the installation wizard seems to fail. They get the error message “0x8007007f” which is too generic to understand the cause. The conflict appears to be related to Windows 10 UAC permissions for the installer, disk space, and drivers.

Fix error 0x8007007f when using Windows 11 Setup Wizard

Disable third-party antivirus and restart Windows 11 installation wizard as administrator

  • The first thing you should try to fix this error is to disable your third-party antivirus if you are using one. It is known that antivirus interferes with the update / update process and can result in many errors. Therefore, turn off anti-virus protection for some time until the update process is completed.
  • After that, when restarting the Windows 11 Setup Wizard, make sure to run it as an administrator. To do this, go to the desktop or location where the Windows 11 Installation Assistant program is located. Then, right-click on the program and, in the context menu, select the option Run as administrator. Click Yes on the prompted UAC dialog and use the Windows 11 Setup Wizard.

    • Enable User Account Control

  • First, search for Control Panel in the taskbar search option and then open it.
  • Now, press the System and Security option in the Control Panel window.
  • Then click the Change User Account Control Settings option.
  • After that, on the next screen, drag the slider to the Never notify me option.
  • Finally, click on the OK button. button and confirm Yes in the UAC dialog.

    • Free up Space on system partition

  • As discussed earlier in this post, the error could be the result of insufficient disk space on your system needed to perform an upgrade. The Windows 11 Setup Wizard will download Windows 11 onto the system drive and onto the same partition. Therefore, if you are low on disk space, you may encounter error 0x8007007f. So make sure you have enough disk space to install Windows 11; it is recommended that you have at least 100GB of free space to ensure you do not get this error.
  • you can free up some disk space using Disk Cleanup Utility. There are some other ways to clean up or free up Disk Space. You can also use free software like Comet (Managed Disk Cleanup) or Cleanmgr + to clean up Disk Space. Also, delete duplicate files from your PC to clean up some space needed.

    • Update your graphics drivers

  • If you have outdated drivers, you can quit up getting this error code when using the Windows 11 Installation Assistant. It’s never a good idea not to update your drivers regularly. Faulty or old drivers can cause many problems, including errors during the update or update process. So update all your graphics drivers and see if the problem is fixed.
  • To update your graphics drivers, you can open the Settings application by pressing the Windows shortcut key + I and go to Windows Update and click Advanced Options button. After that, in the Additional Options section, tap on the Optional updates option. Then you need to select all updates related to your graphics drivers and install them all on your PC.
  • You can also start from scratch by uninstalling the graphics driver and downloading the latest version from the manufacturer’s official website such as Intel, NVIDIA or AMD. Download and install the latest version of your graphics drivers.

    • Run SFC Scan

  • First, open Command Prompt with admin privileges.
  • Now type the command below into the CMD: sfc /scannow
  • Wait some time for the SFC scan to complete. After that, enter the DISM scan command below: Dism / Online / Cleanup-Image / RestoreHealth
  • After the scan is complete, restart the Windows 11 Setup Wizard and see if the error is fixed.

    • Use Microsoft’s Windows 11 disk image (ISO) file to upgrade to Windows 11

  • If you still cannot install Windows 11 using the installation wizard, an alternative is to use the Windows 11 disk image (ISO) file to upgrade to Windows 11. Microsoft now provides an official ISO file that you can download and use to install Windows 11 on your system.

    • Final note

    I hope you like the guide Fix ‘Windows 11 Installation Assistant Error 0x8007007f’ issue. In case if you have any query regards this article you may ask us. Also, please share your love by sharing this article with your friends.

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