can fivereborn be ran on windows vista SP2?
Try it and let us know. But it should. If not try the compatibility mode.
gets an error, citizenFX requires windows 7 sp1 please upgrade your operating system, the only compatibility vista gets is: windows 95, 98, 2000, NT 4.0, XP (SP2) and server 2003 SP1. So there goes being able to play with all my friends then 
but why don’t you upgrade your OS it’s pretty easy.
think i will upgrade to windows 7, just never got round to it, also want to try and uprade so i can keep all my data and files