Ed, I would have said Yes until you said that you (correctly) have all the ST2 and XT2 files in the /BB folder with the main program, yet get that error of files not found. Likewise, the failure of a new install of an older BIAB version that used to work 'points' (pun intended) to a corrupted file system.

Maybe run CHKDSK /F on the boot drive? Back up any data first. The worst possible case could still be solved by reformatting the drive and reinstalling Windows then your applications.


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.