Last year I purchased BiaB ProPAK 2019 and installed the entire program along with all the styles and RTs on my Windows 10 OS hard drive. The entire installation consumes about 16 GB of space on the disk. Since then I've installed a 2 TB HDD as a second disk. Now that I've purchased the BiaB UltraPAK 2020 upgrade, I want to have BiaB set up so that it accesses all of the styles and RTs from a dedicated partition on that second HDD. In order to accomplish this, I've already copied the entire contents of the USB portable hard drive that BiaB UltraPAK 2020 came on to a 500 GB partition on my second internal HDD. Plus, I've moved all of the original installation files for BiaB ProPAK 2019 to a separate folder on that same second HDD partition from their original location on the OS disk. But I haven't yet actually upgraded my BiaB 2019 installation on my Windows 10 OS disk to BiaB 2020 because I want to know the best way to regain the 16 GB of space on the OS disk that BiaB 2019 is currently using. So, my question is as follows:

What is the best way to install BiaB UltraPAK 2020 upgrade from BiaB ProPAK 2019 so that I can end up with only the program files installed on my OS disk and also free up all the space that the styles and RTs are currently using on the OS disk? Should I uninstall BiaB 2019 and the other programs that came with it (RealBand, Coyote, etc.) from the OS disk first and then re-install the programs only on the OS disk before doing the upgrade? Or, should I leave everything as is until after I've completed the upgrade and then delete all of the styles and RTs from the OS disk? Or, can I uninstall BiaB 2019 completely from the OS disk and then only install the BiaB 2020 programs from the second HDD without having BiaB 2019 installed at all?

Tom Levan (pronounced La-VAN)
BiaB 2024 Win UltraPAK Build 1109, Xtra Style PAKs 1-11, RB 2024, Windows 10 Pro 64-bit, Intel Q9650 3 GHz, 16 GB RAM, 500 GB SSD & 2 TB HDD, Tracktion 6 & 7 (freebies), Cakewalk, Audacity, MuseScore 2.1 & 3.4, Synthesizer V