Hello Elio, welcome to the Microsoft community, I'll be happy to help you today;
As I understand you are stuck in Automatic Repair, correct?
If so you will need a Windows 10 installation media to try to repair or format the computer;
To create a Windows 10 installation media you will need a USB stick with more than 4GB;
Note: If you cannot access the computer, do this procedure on another computer that is working normally;
Download the tool according to the installed Windows 10 architecture. On here: https://go.microsoft.com/fwlink/?LinkId=691209
Run the downloaded setup and click Create installation media for another computer;
Select the Language, then select the edition and architecture according to the installed Windows 10;
Connect the Pen Drive;
Click Next;
Select the USB Flash Drive option and click Next;
Click Finish;
If you want to try to repair your computer instead of formatting, I recommend that you follow the instructions provided in the video below:
https://www.youtube.com/watch?v=c7Qeg40UheQ
Hope I have helped, see you soon!