Bought Legendary, gave my vanilla game to a friend.. he can't play
Exactly like the title says. A while ago I was able to buy the Legendary Edition for a very cheap price (23 euros), which I did, despite owning the vanilla version already. My friend really likes Skyrim, occasionally dropping by solely to play Skyrim. Obviously, I handed him my old game so he could -try- and play it on his old laptop. apparantly installing it worked fine, but whenever he wants to play the game, Steam pops up and prevents him from playing it because apparantly the keycode is already registered.
How do I fix this on my end, because I'm extremely annoyed that my buddy cant play a single, off-line game because steam apparantly has it registered on my computer. (the hell is steam doing bothering people with this crap anyway?)