Quote Originally Posted by wkndwrrr
Why? BI is dependent on vanilla rome, not vice versa, so uninstalling BI wouldn't affect the main game, right?
I am saying from experience that when you try to remove an expansion, several files that belong to the vanilla game may get dragged along, namely uninstall files that basically maroon the game on your system. Multiply times I have seen this Painkiller, Doom, and MTW.

I am a little confused by this line:

Quote Originally Posted by wkndwrrr
Anyway, I recently discovered that I am unable to uninstall, as well as reinstall, BI
Can you please explain what you have done up to this point? Also, do you have any running mods?