Tried so many things and still can't get existing or new VMs to boot any Windows iso. Can boot a PfSense iso just fine. Used to work just fine on this cluster. :
Hyper-V Boot Error: The Image's Hash and Certificate Are not Allowed | Windows OS Hub
Create a customized Windows 10 image using PowerShell and Hyper-V – 4sysops
Hyper-v Gen 2 MDT ISO Auto Boot Issue : r/SCCM
Hyper-V 2016 Support for Linux Secure Boot
Ubuntu 18.10 – Creating an UEFI, Generation 2 Virtual machine on Hyper-V – Griffon's IT Library
Solving the “Boot Failed. EFI SCSI Device” error when installing Windows 2012 Server on Hyper-V – Cameron Dwyer
Free Poster-What The Heck is a Generation 2 Virtual Machine–Here is the Answer! – ITProGuru Blog
Generation 2 Hyper-V VM boots too fast for boot_command to trigger · Issue #7278 · hashicorp/packer · GitHub
Running CentOS 7 on a gen2 VM in Hyper-V – vNiklas Cloud and Automation blog
Adding A DVD Drive To A Generation 2 Virtual Machine | Aidan Finn, IT Pro
Changing the boot order for Hyper-V generation 2 VMs – Michael Stoica
Boot Hyper-V From Iso | Password Recovery
Fix Hyper-V Error "The boot loader did not load on operating system" - New Virtual Machine - YouTube
See if Hyper-V Virtual Machine is Generation 1 or Generation 2 | Tutorials
How to Use ISOs with Hyper-V
Hyper-V: Red Hat Enterprise Linux (RHEL) 7.4 OS ISO is not detected if Hyper -V guest is Generation 2 – W
Hyper-V VM Generation 2 - How to boot from .ISO
How to Install Ubuntu in a Hyper-V Generation 2 Virtual Machine - Thomas Maurer
Hyper-V Error - "The image's hash and certificate are not allowed" — Not Your Dad's IT
Hyper v used to install the windows 2012 server we are facing boot loader
