One way to reduce the hazard (and I'm not saying you should do this if unsure) is to change the drive letter for your external drive on each computer where you would use it. I make my drive a high letter of the alphabet, such as P, on each computer. That way, it does not matter what other USB drives may be attached; that one for BIAB is always letter P.

Regarding Simon's correct advice/caution: In Windows, drive letters A and B are for removable media (floppy disks!); thus, C is the normal expectation for a boot hard drive. D used to be for your CD drive (remember those?). So often, when you plugged in a flash drive, it would be letter E. But those days are long gone with the predominance of multiple internal drives. You can use Windows to reassign any drive letter, though I recommend you NOT reassign the boot drive from C to something else, because you still may run into old installers that insist on drive C for programs. Make sense?


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.