Perhaps I’m missing something, but I don’t see why you would need to go back to find 18-year old files (unless they are your own songs, in which case you don’t run an installer). To my knowledge, PG Music doesn’t remove anything, just adds and patches. Since you have BIAB 2018, thete’s nothing you had then that you don’t have now. The exception would be Bonus Paks you bought, and songs or styles you created.


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.