I use VirtualBox on Windows 10 and have a recurring problem where Hyper-V prevents me from using any guest OSes in 64-bit mode. Basically, Hyper-V being installed (and running by default) only allows 32-bit mode in guest OSes.
I've un-installed Hyper-V from the Windows Feature List and restarted, which fixes the problem. However, every few months I need to create a new VM base don a 64-bit guest OS and I can't, because Hyper-V is back and running. I definitely didn't do it and was never presented with an option that would include this, so can only conclude that it was enabled by a Windows update or some other scheduled event.
How would I prevent this from happening? Is there an related process that might be requiring Hyper-V and thus installing/enabling it by default? I am not using anything VM-based other than VirtualBox.
For reference, I fixed my original problem (not having 64-bit guests as an option when creating a new VM) via this issue:
Why does virtualbox only have 32-bit option, no 64-bit option on Windows 7?
