What is causing Windows 10 update error 0x80004005?

While installing the Windows Updates in your computer, sometimes you may encounter some error message for particular updates or even issue occurs while installing all the updates as well. Some users reported that they are unable to update to the latest version 1809 on their computer as it ending up with error along with below symptoms.

  1. We could not install Windows 10. Downlevel Phase/Prepare_First_Boot failure.
  2. Updates failed Downlevel Phase/Prepare_First_Boot failure error 0x80004005.
  3. Windows update version 1809 downloads and installs successfully after restart showing error 0x80004005.
  4. Update failed, Version 1809 download fine, unable to install updates error 0x80004005.
  5. The installation failed in the FIRST_BOOT phase with an error during BOOT operation.


The most effective way to fix different issues in your computer like Updates error, System slow, System Crash, File Cleaning and Optimizing your PC is with the help of Advanced Repair Tool. Download error 0x80004005 Repair Tool here.

Easy to Download and Install:

It is very easy to download and install the ScanUtilities in your computer. Here we are providing the step by step procedure of the same for your convenience.

Step 1: Click here to download the Repair Tool.

Step 2: We are in the online market since the past 7 years. After several years research, this software has developed. Since it is recent development with advanced Technology, Microsoft needs end user feedback. Hence you may get Windows protected your PC smart screen. You are advised to click on More Info and select Run Anyway.

Note: If you are not satisfied with the application, you can uninstall it anytime from your computer.

C:\Users\Canous\Desktop\Screenshot\Windows protected your pc.jpg

Please click on More Info and select the option Run Anyway.

C:\Users\Canous\Desktop\Screenshot\Windows protected your pc2.jpg

Step 3: Proceed with the on screen instructions and install the application.

Step 4: An automatic File Cleaner scan will initiate and it will identify the unwanted files available in the computer and suggest to remove. After the Scan, you can select the option to fix the errors.

Step 5: You can also perform the Registry scan by clicking on the Registry option and then Fix the errors detected in the scan.

Step 6: From Tools option, you can access hidden Windows tools to optimize your computer, Duplicate Finder that removes duplicate files to increase the disk space, Manage Startup items to boot your computer quickly.