@BeeboBrink This is the way to do it.
One thing to note is that on most new Windows machines the Documents folder is managed under OneDrive and sometimes OneDrive can make a mess of your Sims 4 folder in Documents.
You options to manage this is one of the following;
1. Always disable OneDrive from functioning while you are playing the game. This solves a good deal of the issues, but not all of them
2. Configure OneDrive to not sync the Documents folder and ensure that the Documents folder is moved to another location on you hard drive and that the windows OS recognizes that the new folder is the official Documents folder. Instructions can be found online via your search engine
3. Uninstall OneDrive entirely from your new PC if you don't make use of it, Problem solved
