If VirtualBox failed to register and open virtual hard disk image file as UUID already exists, you can fix the issue by removing the current VDI file.

VirtualBox sometimes fails to open guest session and encounters VERR_NOT_FOUND VirtualBox error, we need to add to the problematic virtual machine. Follow the steps mentioned below to do the same.

Of course, VirtualBox has a great snapshot tool and you could always make use of that. What if you want to create a completely automated backup system that would export your VMs (to .ova files ...