Error message on Windows reinstallation?

Di
2

I bought a laptop and got a Windows key. I then opened the windows installer via MediaCreationTool via USB. So far normal. When I then entered the key came the following error message (image)

Hopefully you can help me

LG Tirtz

Error message on Windows reinstallation
To

Why do you want to upgrade a non-existent Windows operating system on your computer to Windows 10? You have to select partitioning and then the hard disk or partition where you want to install the system.

Di

If I choose this (Custom), it will not show me a disk 😕