Sims 4 - Installation/External Harddrive

@luvalwaysteresa   By default when you install from Origin the game core files get created in the c:\Program Files (x86)\Origin Games\The Sims 4 folder. The game user files that are created the first time the game is started are in C:\Users\(user name)\Documents\Electronic Arts\The Sims 4 folder. This could change if you activate OneDrive. When OneDrive is active the game is redirected by the operating system  to the user OneDrive folder. If you installed from disk the installation is different. Your save files go in the user files that are being used. I assume you have an USB external drive. The problem with USB drives is the operating system can change the drive designation. If this happens the game will no longer be able to find game files stored on the USB device. You can move files using symbolic link but unless you really know how symbolic link works I don't recommend using it. You can change the install location when you install the game but that only installs the game core files differnetly - the game user files are still created in the user documents folder on the system drive which is usually C. So you see the answer is not that simple. We would have to know you moved it and from where to where. Then we would have to know how you tried to move it back. At this point I can only recommend uninstalling and reinstalling the game.