Proxmox Windows 10 VM GPU Passthrough

Creating a VM: General Tab

Creating a VM: OS Tab

Creating a VM: Hard disk Tab

Creating a VM: CPU Tab

Creating a VM: Memory Tab

Creating a VM: Network Tab

Creating a VM: Confirmation Tab

Adding PCI devices:

Add your GPU and add an EFI hard disk to your VM

GPU Settings

All Functions: ENABLE
ROM-Bar: ENABLE
Primary GPU: DISABLE
PCI-Express: ENABLE (requires 'machine: q35' line in VM conf)

What your Hardware tab window should look like after creating the VM

Final Options Window

Final Hardware Window

Multiple GPU Passthrough: IT CAN BE DONE!