The RAM and the CPU have nothing to do with your problem. What we need to have is the size of your internal disk drive, drive C:. And you must have a second internal drive, D. How big is that?

And what did you buy? The Pro pak, Ultra pak, or Audiophile version?

It is possible when you run the installer to choose among several options that help you overcome this problem. You can just run the minimal install and the program and sound files will (almost) all be on the external PG Music drive. Or, you can load the program on either Drive C or D, then keep the sound files (RealTracks and RealDrums, which take up most of the space) on the external drive.

Fifteen minutes before this post, you asked a question about playback, so I'm puzzled that now it's a question about loading the program.

I highly recommend you call PG Music Support and get guidance from them. Look at the Support tab, above.

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.