virtualbox.org

Hello, I cannot get an iso image to install.
My machine: Auros Gigabyte X570 elite (yes I know, renound for bad virtualization) with SMT enabled in bios. All hypervisor functions are disabled in windows. I go through and set up the vm for linux/Ubuntu 64-bit, attach iso image, and start the install. It barely does anything, just a black screen with a spinning ring that stops spinning, then completely freezes while my CPU is working 10 degrees C hotter than normal. I'm not sure how to attach a file, but here is the last bit of the log. Thanks in advance, and I will happily provide any more information that you want.

Please right-click the guest in the main Virtualbox window's guest list, choose Show Log.

Search the far left tab's log for this text:

Attempting fall back to NEM

If you find it, Hyper-V is enabled. See HMR3Init: Attempting fall back to NEM (Hyper-V is active).

If you don't find that text, save the far left tab's log, zip the log file, and post the zip file, using the forum's Upload Attachment tab.

OK, wow even though I do not have hyper-v enabled, I still got that message, so I will look into the elaborate solution you shared. Thank you!

If you get that message, the Windows hypervisor is loaded. Lots of things apart from Hyper-V can cause that, as you will see when you read the reference you were given.

Thanks everyone for your patience and help. This solution solved my issue, cheers take care y'all.

Glad you're up and running!