Hi ... with a view to saving space on my SSD,(C drive) moved the Packages folder to an external drive and linked back to SSD ... only, when I started the sim having done that, was confronted by a 160 something GB update ... am awaiting a response to this message before running the update, as have a gut feeling the two things may be incompatible ...???

it'd appear i'm the incompatible one ... worked it out ...