I have Win 8.1 installed on my PC. I wan't to format the drive and do a clean install of Win 8.1 again.
I've created a Win 8.1 Pro bootable USB using Rufus as described on this site.
I am doing an install in UEFI mode as I wan't to use my SSD native encryption as it is Microsoft eDrive compliant (my current installation is also a UEFI one and works fine).

The issue is when I try to boot from the USB i get the following boot error:
Click image for larger version

So I get this error only when booting from the USB. I have no problem booting into my existing Windows installation.
Am I doing smth wrong or is the USB boot disk corrupted maybe?
Any ideas?