I wanna try it out but I&#x27;m not brave enough to do it directly in my OS. WHat would happen if I did it in Ubuntu inside a VM? What if VirtualBox has mounted some directory on my system to the guest? I&#x27;m afraid to try this too :&#x2F;<p>I once tried &#x27;format C:&#x27; on a Windows 10 laptop I didn&#x27;t care about and I just got a boring error message.