SOLUTION: Windows 10 upgrade failure 0x8007001F – 0x20006

This week, a client brought me a Windows 7 PC which refused to upgrade to Windows 10, despite their having reserved a license long ago for the OS and attempting to install it repeatedly. The error message they were receiving was:

0x8007001F – 0x20006
The installation failed in the SAFE_OS phase with an error during REPLICATE_OC operation

A screenshot of the setup error message which repeatedly plagued this machine

My usual remedial measures, after poring through setup error logs and all that fun stuff, were completely unsuccessful in this instance. Myriad internet searches also turned up lots of other people with the same problem, but no actual solution. Everyone simply wiped/reinstalled Windows.

Some of these attempts included:

  • sfc /scannow
  • BCD rebuild
  • Boot parameters rebuild
  • System (boot) partition rebuild
  • Filesystem checks, etc
  • Permissions repairs

Nothing at all worked. Eventually, however, I stumbled across a solution almost too simple to seem likely to work: an in-place upgrade of Windows 7. In other words, in colloquial terms, a conventional “repair install”.

All this involves is to grab Windows 7 install media matching the version installed and perform an “upgrade” process right from within Windows. Once complete, I had to reenter the Product Key and reactivate – so make sure the sticker is legible on the particular machine you’re working with. If it isn’t, specialized activation backup/restore methods will be required to continue with the process and eventually the Windows 10 upgrade.

After this, everything worked perfectly. The W10 upgrade process was smooth, and the client is now happy as a clam!

Donate to say "Thanks" if this post has helped save you time and money! 🙂

2 thoughts on “SOLUTION: Windows 10 upgrade failure 0x8007001F – 0x20006

  1. I did what you did. I also reinstalled Windows 7 and I got the Windows 10 Update Assistant Button but when I continued every time it tries to install windows 10 it ends up with windows 10 install failed error 0x8007001f. Until now I cannot upgrade to Windows 10 again. It sucks.

  2. Woohoo! Thank you so much for this. I have been stuck with this issue a couple of times before and hit it again. I have had to do a clean installation in the past. I can confirm that doing a repair install of Windows 7 with the original media disk (Service Pack 1 version), retyping the product key on the case, activating Windows, reboot and try the Windows 10 media (currently 1903) again actually works. Windows 10 has installed trouble free and activated automatically.

    Thank you once again for this 🙂

Leave a Reply

Your email address will not be published. Required fields are marked *

Time limit is exhausted. Please reload CAPTCHA.