"The unsigned image's hash is not allowed" during setup

[PascalB41]

Hello,
I try to install pfSense 2.4.4 on a VM under Hyper-V (Host is Windows Server 2016).
I downloaded last GA ISO file and created a DVD connection to my VM.
When I run my VM, it doesn't boot and display an error message :
"The unsigned image's hash is not allowed"
Any idea about this error ?
Thank's
Pascal

[jimp]

That's a Hyper-V issue, not pfSense.

Probably a boot option like "Secure Boot" you can disable to get past it.