Re: Save Files won't load after transfer to new computer
@jackie_s_19 Please move your entire Sims 4 user data folder out of Documents\Electronic Arts and onto your desktop. Launch the game to create a clean folder with no content, and quit at the Main Menu. Then copy just one of your saves from the old user data folder to the new one, and see whether it's available to load.
In order for a save to be read, its name has to be Slot_0000000x.save, with x being a number from 0 to 9 or a letter from a to f. (The label is hexadecimal, so after f, it rolls over to Slot_00000010.save.) The .verx files are backups of the last five times you saved before the most recent one, and you can load them too if you delete the .verx extension. When restoring a backup, be sure to renumber it (e.g. Slot_00000003.save.ver0 becomes Slot_00000006.save) so that you don't have two files with the same name in the same location.
I'm not sure what's happening with the Slot_00000003.savex.ver1 files, but if you delete the extension so they end in .save, they should be readable too.
If none of the saves work, please let me know. And please also make sure that all the packs you own and have been playing with on your Mac are also loading on the Dell, and that the Dell isn't running the Legacy Edition of Sims 4.