Do not install the core FL Studio program on a thumb drive. Instead, install the official trial or paid version on both computers you use. Then, place all your drum kits, loops, and project files (.flp) onto a fast external Solid State Drive (SSD). Open FL Studio. Go to .
Speed is essential for loading samples.
You can install FL Studio to an external drive, but it will still write registry entries on each PC you plug into. It works, but not truly portable. download fl studio portable better