Playing Fallout 3 on more than one comp

I installed F3 on my External HDD and have since been trying to play it at my college campus, since i spend most of my time there. But whenever I execute the launcher from my HDD, it asks me to install. Anyone have any idea why?

Like what? I play F3 at home off of the external but i cant at the campus.

Like what? I play F3 at home off of the external but i cant at the campus.

ProChamp

ok, i think i understand. thanks

I would be surprised if your campus computer would even let you install the game to begin with. The ones at my university don't let you install anything.

I would be surprised if your campus computer would even let you install the game to begin with. The ones at my university don't let you install anything.

kodyoo

I installed F3 on my External HDD and have since been trying to play it at my college campus, since i spend most of my time there. But whenever I execute the launcher from my HDD, it asks me to install. Anyone have any idea why?

ProChamp