Having the same problem.
System
Motherboard: Asus B460M-A
CPU: i5 10400
Ram: 16gb
I've tired with no success to enable CSM (Compatibility Support Module) as a work around, It appears the Asus bored has locked out that option. I thought about changing Motherboard to a Gigabyte B460M DS3H, I'm glad I found this post. I'd tire using the non UEFI for the download and enable CSM see if that works?