Error - ISO mounting returned no drive letter.

Hi I know there is already an issue on this but i tried all the solution and it's still doesn't work.
So to resume,
I'm on windows 10 Pro :

I want to update to windows 11 so I tried with the assistant of windows but he says than I have a software (VirtualBox) who isn't compatible with windows 11 and ask me to uninstall it but it's already uninstalled and the assistant still say the same (even by deleting some register about VirtualBox) so I tried with the iso of win11 directly but it's stuck at searchin new updates at 46%.
Finally i came to FlyOOBE but it doesn't work too,

System.InvalidOperationException: ISO mounting returned no drive letter.

At first, I got Daemon Tools but chat gpt said it could enter in conflict so in uninstalled it and it say the same things.

I have the last version of FlyOOBE.

I tried to install the iso by Fido (not working), by Media Creation Tool (got the same message) so i run out of ideas on how to solve that, i searched on the current issues but i didn't found a satisfaying answer, can someone help me please ?
Thanks to all of you