Forum Discussion
willk7
Nov 20, 2021Copper Contributor
Window 11 upgrade has failed error code 0x8007007f
Window 11 upgrade has failed error code 0x8007007f
Err0r404
Apr 10, 2022Copper Contributor
I actually ran into this issue as well when attempting to run the Windows 11 Installer Assistant, the problem was that the process would get to 71% and then error out with the Error Code specified in this thread.
Similar to GreaterShrew issue, I ran everything on my device to ensure everything was updated regarding Windows Update, drivers and so forth. Ran the SFC actions and DISM commands, but did nothing to resolve the issue.
One method that worked for me was running the installer program as an "Administrator", sounds dumb as our windows profile are set to administrators but right-clicking the program and selecting "Run As Administrator" did the trick for me.
Otherwise, for anyone else that comes across this post at a later time, I would suggest the following as well:
Run the following commands in an Elevated Command Prompt:
SFC /scannow
dism /online /cleanup-image /scanhealth
dism /online /cleanup-image /restorhealth
Ensure all Windows updates are installed for your current OS build. Settings > Updates
Run the Windows11Assistant application as an Administrator
Reboot as necessary
Hope all this helps!!
Similar to GreaterShrew issue, I ran everything on my device to ensure everything was updated regarding Windows Update, drivers and so forth. Ran the SFC actions and DISM commands, but did nothing to resolve the issue.
One method that worked for me was running the installer program as an "Administrator", sounds dumb as our windows profile are set to administrators but right-clicking the program and selecting "Run As Administrator" did the trick for me.
Otherwise, for anyone else that comes across this post at a later time, I would suggest the following as well:
Run the following commands in an Elevated Command Prompt:
SFC /scannow
dism /online /cleanup-image /scanhealth
dism /online /cleanup-image /restorhealth
Ensure all Windows updates are installed for your current OS build. Settings > Updates
Run the Windows11Assistant application as an Administrator
Reboot as necessary
Hope all this helps!!
- laiyaApr 02, 2025Copper Contributor
update from the commands, thanks for the instructions but the final commands is missing a e after the restore,
the correct command should be :dism /online /cleanup-image /restorehealth for those who need
Best reagrds - QCDR3Mar 18, 2024Copper Contributor
Err0r404This helped me too. I am only at 78% so far but at least I made it past the 71% threshold LOL. How running in admin mode made the difference I don't understand. Running an install app for upgrading to a newer version of the current OS should automatically set itself to admin mode and request login credentials if needed.
- pcknightsSep 03, 2023Copper Contributor
Run as admin worked for me as well to pass the 71% Barrier. Thanks so much!!
- rozeboosjeDec 10, 2023Copper ContributorMy "me too" for "Run as Administrator". Nice one.
- treebluedogsOct 19, 2022Copper ContributorTried all these tips and still error
I need to know how to install 11 as administrator.
I don't know how to do it.
HELP- Dennis835Oct 19, 2022Copper Contributor
I reinstalled windows 11 where I kept my files and that is what worked for me.......make sure you a backup and disk image before you try. I use macrium and it's back up works like a charm treebluedogs
- KholtoDec 12, 2022Copper Contributor
Despite the install assistant asking for admin by itself when started, starting it as admin still made the difference and brought me past the dreaded 71%.
treebluedogsIf you are using a file you can right click it and choose run as administrator.
- mak56581Apr 15, 2022Copper ContributorHello, the info with the "Administrator" made it work for me. Thank you
Only strange that MS not just tell me to do so!