@mapleleagirl@mcsupersport@RoamiBlu
Yes you can use with a usb-drive, that's what I meant by "moving to a new computer", even though I understand that was unclear!
I don't know how to sync your files to >play< from OneDrive, but SimsVIP has a tutorial. Don't know if it is any good, make backups 🙂
https://simsvip.com/2017/05/10/tutorial-backing-sims-files-automatically/
If you want to use OneDrive to move your files to another computer, or just to save them somewhere while you reinstall it etc, check this out:
https://hostpapasupport.com/microsoft-office-365-how-to-copy-or-move-files-to-onedrive/
As for OneDrive and the Sims 4, OneDrive can give problems, but only when the game starts syncing without you knowing (might happen after a game update), end it's generally not worse than that you have to move your savefiles etc to the new onedrive-folder, or than you close onedrive. You will only sync och user files, not the game files, and in sims that info is only needed for you being able to access your old stuff (saves, mods, library), not to run the game.