MiniBook x N5100 Does not Boot

Serial number: ZMinBXHY3H220500564

I received the minibook as a gift three years ago.
The minibook was fully installed. I don’t have any documentation that would show the Windows registration number. However, since Windows was already installed on the system, I’m hoping you can tell me the number.
I need to create a USB boot drive, and I need the software and registration numbers for that.

With best regards
Axel Buckl

Hello
What problem occurred that prevented it from starting?

I checked and you can download everything from here