How to transfer a game from computer to a pen drive connected to it?

Such that the game can be played, when connected with the pen drive to another computer.How to transfer a game from computer to a pen drive connected to it?It depends on the game. In most cases I would start off by making the game an .iso format by using poweriso or magiciso maker, and mount the game as a virtual disc, if it's a disc based pc game.How to transfer a game from computer to a pen drive connected to it?install it to the pendrive directory.