Windows 10: Windows 10 Upgrade Error Solved

  1.    07 Feb 2016 #1

    Windows 10 Upgrade Error

    I did a fresh install of windows 8.1 (pro x64) on a spare laptop of mine a while back.
    I thought of upgrading it to windows 10 (pro x64). When I try to upgrade everything goes smoothly until the screen where there is a big dial in the center. It goes to about 35% and the status of copying files is at around 75% and the system restarts. After it restarts a screen appears which says Restoring your previous windows and I get an error message 0x80070b7 (or something like that) which says something of this sort 'Windows 10 installation failes in SAFE_OS phase PREPARE_FIRST_BOOT'.
    If anyone can provide some steps I'll be grateful, I have'nt had any luck googling about it.
    TL;DR Want to upgrade to Windows 10 but cannout due to PREPARE_FIRST_BOOT Error
    Click image for larger version. 

Name:	5xKMWVx.png 
Views:	5 
Size:	15.8 KB 
ID:	62950
    Last edited by Multikill; 07 Feb 2016 at 12:44. Reason: Adding pciture
      My ComputerSystem Spec

  2.    07 Feb 2016 #2

    Google is your friend - just entered the error message and up popped various solutions -


    Happy reading & good luck!
      My ComputerSystem Spec

  3.    08 Feb 2016 #3

    Thanks for your input but I did not have any luck with any of those solutions
      My ComputerSystem Spec

  4.    09 Feb 2016 #4

    Okay so what worked for me was that my Windows 8.1 Pro was installed as EN-India and the iso that I was using was in EN-US (I download it from the torrent). So the error was due to different regions, if it helps anyone.
      My ComputerSystem Spec


Related Threads
Windows 10 Upgrade error - WindowsUpdate_80070050 in Windows Updates and Activation
Every time i try and upgrade windows 7 to windows 10 i keep getting the same error message over and over again. I tried using google to find a answer and i found nothing
Upgrade from windows 7 Error in Installation and Upgrade
Hi all I have a Dell Optiplex 3020. It had Windows 7 Pro on it before I upgraded to Windows 10 The upgrade seemed to go OK and I could boot once after the upgrade. But then the system crashed with the screen flashing. I rebooted and I get a...
Windows 10 Upgrade Error 800704DB in Installation and Upgrade
Trying to Upgrade to Windows 10 Pro (from Windows 8.1 Pro), getting error message 800704DB. I get past the initial 'agreement' and it then goes through various processes and asks what to keep. Then the install begins and opens into full screen.... I have tried what I believe to be everything at this point. Clearing out the update download folder and retrying the update does not help whatsoever. Forcing the update through a command prompt just gets the...
Upgrade windows 7 error in Installation and Upgrade
""The installation failed in the SAFE_OS phase with an error during INSTALL_RECOVERY_ENVIRONMENT OPERATION"" Please help!
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 11:36.
Find Us