I think this is easily resolved.
Go to the PG Music Website https://www.pgmusic.com/bbwin.htm

Log on to your account at PG Music, click on Account > My Products (top RH corner).

Scroll to your BiaB 2020 download link, download it and then run the installer after it has downloaded.

Do let us know if this helps resolve.


BIAB & RB2026 Win.(Audiophile), Windows 10 Pro & Windows 11, Cakewalk Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Session Keys Grand S & Electric R, Kontakt, Focusrite 18i20, KetronSD2, NS40M, Pioneer Active Monitors.