Re: Two Sims 4 folders in separate drives

@cryobearzz  What's inside the Sims 4 folder on C?  Sometimes Origin creates a second folder for the game's program files and dumps a bit of data in there, but that data is extraneous and can be safely deleted.  If you only see a small portion of the game's full program files—compare this to the one on D for reference—then that's probably what's happened on your computer as well.  If you're not sure what you're looking at, feel free to post screenshots of each folder's contents.

While there's always a chance that the files on C are in fact essential, at worst, all you'd need to do would be to repair the game and/or redownload the missing files.  You won't permanently break anything by nuking that folder.