Re: Unable to start because game data is missing
@smooshnoosh Yes, it's easy enough. Scroll down a bit here:
Be sure to grab any files you might want from OneDrive first: for example, it might hold Sims 4 content or other important documents. When you unlink or stop syncing, and maybe also when you uninstall OneDrive, sometimes your files will end up only in OneDrive and not on your hard drive. You could drop the files you want to keep into any folder that isn't currently being synced (e.g. Downloads) before uninstalling OneDrive, then restore them afterwards.
