Hi,

I recently called Microsoft support to upgrade my W11 Pro from 21H2 release to 24H2.

The approach consist in launching a repair upgrade based on the W11 installation ISO.

At the end of the 1st installation path, after PC reboot I get an instant message indicating the installation has failed, and that the PC will revert to the initial state.

After reboot I get the following pop-up :

From what I read in various forums, I understand that the error is related with some (possibly driver) corrupted files, but no indication is given about their names or location.

Any clue on how to proceed will be appreciated.
Best regards.
-- Stéphane --

Hi, I just noticed the sentence at the bottom line of the error popup (see previous reply).

Translated to english : ***"You won't be able to keep your files, applications and settings, since you chose to install Windows 11 using a different language from the one you are currently using".***There is a paradox there, since I try to install W11 Pro using the french language, from a french installation of W11 Pro.

Any idea?
Thanks!

Please share the following setup log file on OneDrive (or any other host) and post the link here:

C:$WINDOWS.~BT\Sources\Panther\setupact.log

Note: "C:$WINDOWS.~BT" is a hidden folder. To access it, press Win + R, type "C:$WINDOWS.~BT" and click OK.

---

(How-To: Share OneDrive files and folders - Microsoft Support)

https://support.microsoft.com/en-us/office/share-onedrive-files-and-folders-9fcc2f7d-de0c-4cec-93b0-a82024800c07

OneDrive sharing options - screenshot: https://imgur.com/a/vZyxpY9

Voici le lien : setupact.log

Thanks.

In my understanding a clean install will require all user applications to be reinstalled. Is that correct?

If feasible I would like to avoid this as the software stack installed on my computer is complex with multiple technical dependencies and will require 2 days at least to be functional.

What would the most effective approach be to achieve this ?

Best regards.

--Stéphane --

Hello! I'm Manoel Barros!

When Windows has corrupted files, this type of problem can occur. This is especially true when it is a major upgrade from one version to another.

Unfortunately, there is no way to find out where the corrupted files are. You can run Windows repair commands, which can repair most corrupted Windows files.

• However, this does not guarantee that all files will be repaired.

In more advanced cases (when you have tried several methods and the problem persists), you will need to perform a Clean Installation.

Repair Windows

1. Type "'Command Prompt" in the Search Bar > Right-click on the app > Select '''Run as administrator''.
2. Now let's type the following commands.

ATTENTION: Type the entire command on the first line > Press ENTER > Wait for the command to complete > Execute the next command in the list.

DISM /Online /Cleanup-image /Restorehealth

sfc /scannow

chkdsk c: /f /x /r

• When the message "...Check next time the system is restarted? (Y/N)" appears, press the Y (Yes) key.

3. When finished, turn off your computer properly and turn it on again.

Clean Format

ATTENTION: Restore is not always able to "clean" Windows 100%. Some issues may still persist after Restoration.

Therefore, we recommend performing a Format and Clean Installation of Windows, which ensures that the problem is resolved, and that Windows has 100% intact and original files.

ATTENTION: You must manually back up your files to another location, as all files and programs will be deleted. If you do not have experience and knowledge, take your device to a specialized and trustworthy technical assistance!

1. In the link below, Kapil Arya MVP explains how to do a Clean Format.

https://answers.microsoft.com/en-us/windows/for...

2. Update Windows and install drivers via Windows Update.

ATTENTION: Do not use third-party programs to install drivers (only from the Manufacturer or Windows Update).

Update Windows and Drivers

1. Open System Configuration > Click ''Update & Security'' > ''Windows Update'' > ''Check for Updates''.
2. Download all available updates. Click ''Show optional updates'' marked in blue > Select all drivers and updates > Click ''Download and Install''.
3. When everything is finished, restart the computer > See if the problem appears while performing the steps above.