Love the avatar.

Congratulations on upgrading. It's an amazing difference from 2007, isn't it?

I would like to say, no problem erasing the /BB folder on drive C, but why don't you just run it from the external drive for awhile to be sure? Make a desktop shortcut to the /BB/bbw.exe file on your external drive.

When you installed BIAB on your drive C, it did install fonts that are needed. These are not in the /BB folder so they would not be deleted if you blew away that folder, but just so you know, you technically do not want to get rid of "everything BIAB" on drive C.

Basically, what you are doing is creating a manual version of what one of the four installation options does. If you have any doubts, why not just call PG Music Support and talk it through with them? Or, post your exact intended steps here for us to review.

You probably haven't made many customizations yet, but there is a nice new feature that allows you to save them. If you do Opt., Return to Factory Settings, you will be asked if it is a full or partial restore, then you will now be prompted to save your current settings. I would encourage you to run BIAB from the external drive, set any customizations, and then do this command, to save your settings.

One other point. The great bulk of the file size for the BIAB program is in the RealTracks folder, and somewhat less in the RealDrums folder. You already have these on your external drive (as do many of us). What remains in the /BB folder on Drive C is a very large number of files, but most are comparatively small. Leaving those alone would not be so bad. If you did the install routine to place the RealTracks and RealDrums on the external drive, then you still have /BB/RealTracks and /BB/RealDrums folders in C:/BB, but they contain only two small 'pointer' files each, telling BIAB where to look for the rest of those large files.

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.