Since your C drive isn’t full and it’s a SSD, I would leave things as they are. The largest files of BIAB by far are already on drive D.

Run one of those free-space visual indicators like Treesize and find some space on C from somewhere else. There’s always stuff to delete.


BIAB 2026 Win Audiophile. Software: Fender Studio One 8, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus Quantom HD8 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.