So I found a page giving information on how to pull this off, for duel monitor setups. http://forum.kerbalspaceprogram.com/showthread.php/20894-KSP-in-full-screen-windowed-mode!-quick-n-simple-(windows-only) I would have posted on that topic, but for some reason it isn't showing my reply. So either the forum was closed, or something else was going on... So trying a new topic Sorry for the rather obvious question, but I seem to be missing something here. The basic short cut that is setup by Steam doesn't show a "Target" so it cannot be altered. So I tried to go into the KSP folder, created a short cut for KSP.exe and under Shortcut Target if I Try and add -popupwindow without spaces (C:\ksp_win\ksp.exe-popupwindow) or with as you show above (C:\ksp_win\ksp.exe - popupwindow) I get a Problem with Shortcut error, basically telling me that the Target is not valid and to make sure the path and file name are correct. Any help on this would be amazing, I've been trying to find way to play Full Windowed for a bit now.