best way to do it is open up all of the XML files in the Launchbox\data\platforms folder with Notepad++ then go to search in the menu bar and select Find type in the beginning of the old path as it shows in the xml so if it is showing C:\Launchbox\Games\ and you are just changing it to D:\Launchbox\Games you would just put C:\ in the find box do a count to make sure it is finding them then open the replace tab and type D:\ in there and then click to change in all open files and it will change the path in all of your xml files as a precaution make sure you back up the platforms folder before changing anything in case of a mishap. Also if you have any platforms with data on different drives make sure they aren't included in your open xml files when making the changes. I also wanted to add that the location you where talking about changing will have no effect whatsoever on the games you have already imported. That field is always set to show the games folder even if you imported your games and they are located in a complete different directory.