I could not upgrade my Windows 10 installation to 11 no matter what I did. I even used the below code on a Command Prompt as Administrator to fix any system file errors, it didn't work. All my last attempts failed at the second boot stage. Since my Windows 10 installation is secure at my original SSD, I decided not to waste further time and do a clean installation instead. So I used my hybrid installation USB Flash drive and, at last, successfully installed Windows 11 on my main home computer. I will fill my 2nd computer specs later. To avoid losing my files I installed without format, so all my data are in the windows.old folder. I now install my applications a little at a time. If I need a fully working system in the mean time, I will just disconnect the Windows 11 SSD and connect my original SSD. All my previous drivers worked in Windows 11 without any issue. One weird glitch I saw was that in Edge there was only the Bing search engine! A Windows Update and restart later all search engines were there, so I could set the default to Google. If I have other news I will post again. Thank you all for trying to help.
Code to repair system files in Windows 10/11:
Code:
Dism.exe/online /Cleanup-Image /StartComponentCleanup
sfc/scannow
Dism/Online /Cleanup-Image /RestoreHealth
sfc/scannow
Running the last line you may see a message that you should restart first. Restart the computer, open a Command Prompt (aka Windows Terminal) as Administrator and execute last line again.