when i run the installer it just goes straight to repair, uninstall, no option to pick drive/location, and i meant if i was working on something and messed up say a bunch of c++ files to the point it was so broken i just wanted to start again (like editing the defaultgame.ini in UDK and doing something that screwed everythinng up and not knowing it was defaultgame.ini i had messed up) i could have another copy of the same build installed, but keep the messed up build installed while i copied and checked my code again as i went along.