Disk Image won't open

Hi all.

I've just completed a fresh vanilla install. And I run into the following problem:

https://preview.redd.it/91al5dgxwb841.png?width=439&format=png&auto=webp&s=b73693c1569e2d1e98aa83391909e0f8efb6d32b

I can't open this disk image. I can open it on my MacBook. So it's not the file. I've also removed two memory sticks that I recently installed but that also doesn't help.

BUILD:

Motherboard: Gigabyte Z370M DS3H

CPU: 8700K

GPU: Gigabyte AUROS RX580 8GB

Vanilla install by the guide.

EFI folder if someone wan't to take a look.