Re: Sims game crashes when I save
@IhasCat Try using "save as" rather than save. It's not necessarily likely to help, but it's worth trying.
If that doesn't make a difference, please run a dxdiag and attach it to a post.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/
Please also let me know whether you have OneDrive set to automatically sync the contents of Documents with cloud storage. If you do, please disable auto syncing.
Before you change the settings though, be sure to move or copy your Sims 4 folder (the one in Documents\Electronic Arts) elsewhere, because unsyncing often moves the folder to cloud storage and off of your hard drive, rather than your having access to a copy in each location. You can put the folder back once OneDrive is no longer syncing.