Hello,
Thanks for sending in your question to the team and welcome to the forums. I used Google to translate your message and it's about Fusion 360. I'm going to go ahead and move you over toe the Fusion 360 forum so that the right people can take a look at your issue and help you out.
"Can not start after installation
After reinstalling the OS, I get an unexpected authentication error ... so I can not start Fusion 360.
Even stopping the firewall was useless.
Proxy setting did not fix it either.
I think that there is a problem with reinstallation,
How can I deal with these cases?"
Hope this helps getting you pointed in the right direction for help with Fusion 360 and have a great day and weekend.