Slitherine

I have a stupid question. When I downloaded the basic game for OOB WWII, I saved it to a flash drive so it would be portable among the various platforms I use every day. I have a primary and a secondary desktop at home and a laptop I use when traveling. When I downloaded US Pacific I assumed I would get to choose where to save it it also. US Pacific saved itself onto my primary desktop and not only can I not play it from my flash drive, I cannot even find it on my desktop to move it to my flash drive.
Look, I don't want multiple copies and I don't want the game on multiple platforms at the same time; I just don't want to have to arm wrestle the wife for computer time on the primary when we have four other perfectly good platforms in the house.

default installs saves are here

I strongly suggest you to not install games on flash drives. Install the game properly on internal hardisks or SSDd drivers.
Otherwise you might experience glitches, crashes etc.