Can use the deskop produkts on a win8.1 Laptop AND a Desktop PC. in different time slots - not parallel.
e.g laptop in the hotel on the Jurney an desktop in the office.
no problem with that.
in fact, i have cc installed on 4 computers (2 desktop pcs, 1 surface pro 3 and 1 macbook). of course, i can sign in to, at most, two computers at any one time but it's easy to sign out using cc: you can sign out of your other computers using the only that you take on your journey if you forget to sign out before you leave.