Change UUID of VirtualBox Hard Disk vdi

While re-adding a deleted hard disk on my virtualbox server with same drive name, I got the following annoying 🙁 error “Failed to create the hard disk storage… Cannot register the hard disk… because a hard disk with UUID xxx already exists“. OK lets fix this: – Open command prompt as Administrator, change directory to the install path ‘C:\Program Files\Oracle\VirtualBox’ (Might be different from your depending on where you installed the application), type in the following command: VBoxManage.