Date: 2019apr5 Product: VirtualBox Q. VirtualBox: how can I rename the .vdi file? A. Do NOT just rename it in Windows Explorer or something. Instead do this: When your VM is NOT running. In VirtualBox - Click on Global Tools (top right) - Right click on the .vdi - Select Move and enter the new name - That's it - Click on Machine Tools (top right) to return to the normal view