FIX: VirtualBox Failed to open Hard Disk file. Cannot register virtual hard disk because a disk with the same UUID already exists.(Solved) - wintips.org - Windows Tips & How-tos
Chapter 5. Virtual storage
How to add new drives to a VirtualBox virtual machine | TechRepublic
3.7. Storage Settings
8 Ways to Open Hard Disk Image Files via VDI & VHD Explorers
Chapter 1. First Steps
Adding and removing disk drive in VirtualBox
VirtualBox USB Drive Access - HOW -TO Guide [2023]
How to Enlarge a Virtual Machine's Disk in VirtualBox or VMware