Originally Posted by
epmode
For the one or two people that are interested in this, the PC version of Bioshock (Steam or retail) ships to customers with a two install credit. Meaning, when you install, Securom is notified and your install credit count is reduced by one. The only way to get this credit back is to properly unisntall the game. Reformatting your hard drive or simply deleting the Bioshock directory is not a proper uninstall, so you'd be fucked if this happens more than twice.
I suppose you might be able to email 2K or Securom to resolve the problem in that case, but who knows.
This is pretty stupid and I fully expect it to be patched out of the Steam version (as with Trackmania United + Starforce).