Upgrading from Windows 10 to 11 Fails after Reboot

Romu92600 20 Reputation points
2025-09-13T06:11:41.2266667+00:00

Hi,

my PC is running Windows 10 (up-to-date according to Windows Update). I tried to upgrade to Windows 11, but it keeps failings. After the reboot, the installation continues and after a moment it is cancelled.

I ran the compatibility tool and the below commands, but it didn't help:

dism.exe /online /cleanup-image /scanhealth

dism.exe /online /cleanup-image /restorehealth

dism.exe /online /cleanup-image /startcomponentcleanup

sfc /scannow

I can share the setuperr.log file or any other useful information.

Could you help me to solve the issue?

Thank you,

Romuald

Windows for home | Windows 11 | Install and upgrade
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Answer accepted by question author
DaveM121 946.1K Reputation points Independent Advisor
2025-09-13T06:45:33.2466667+00:00

The most successful method to upgrade to Windows 11 is to use the Windows 11 ISO.

You will need at least 40GB of free space on your C drive for the upgrade.

Please ensure you download the ISO in the same language as you use for the Windows UI, follow the steps, this is then not like re-installing Windows, it is just like an update and your personal files, settings and installed software will not be affected.

Click this link:

https://www.microsoft.com/software-download/windows11

to download the Windows 11 ISO

When the ISO file completes downloading

Disconnect from the Internet

Disconnect all external devices with the exception of a mouse or keyboard.

Temporarily disable any 3rd party Anti-virus you may have installed

Then, in Windows File Explorer, double click the ISO and then run Setup.exe and select the Install option.

Very Important - ensure you select the option to keep your files and apps.

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  1. Romu92600 20 Reputation points
    2025-09-13T17:57:15.8166667+00:00

    Hi,

    Thank you, it worked fine, thank you!

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