Sims 4 saves missing after changing computers

@naturegirl300  Does the game work on your new computer?  From your description, it sounds like the problems running Sims 4 are limited to the old computer, but I want to make sure.

If the game works (minus your missing saves) on the new computer, please create a new save.  You don't need to spend much time on it; this is just for testing.  Save your progress, exit to the Main Menu, click Load Game, and hover over the folder icon for the save you've just created.  That will show you where the corresponding save file is located.  Your other saves need to be in that same location.

By the way, if the new save has exactly the same name as one of your old ones, you'll want to change the name of the new save before moving the other files over.  Your operating system won't allow two files with the same name in the same location.

@puzzlezaddict Hello, I apologize if I have bad descriptions, explaining things correctly is something I struggle with. The new computer can run the sims, it seems that it was just the old one that could no longer open it, this started after I downloaded University. I did as you said and started a new save etc. The save is in the same location as the ones I put into the game. This morning I looked through the files on my old computer to find all of them in the exact same spot as the thumb drive, I am soon going to try and get my game to open one last time to see if the saves are still in game.

@puzzlezaddict Hello dear friend, I was able to get into my old computers game to find that the files are missing from there as well. I’ve decided to let this go. Thank you for your time and I hope your days will live on in peace.

@naturegirl300  One other thing to check is the names of the old saves.  They need to be named with an eight-digit hexidecimal number and not have any extra suffix on the end.  For example, these names work:

Slot_00000002.save

Slot_0000000c.save

Slot_00000015.save

These do not:

Slot_00000002.save.ver0

Slot_0002.save

Slot_00000002.save 28

Slot_00000002.save [computer name here]

If you don't want to try anymore, I'm sorry that your saves are gone.  Please do make backups of your new saves going forward, so you never lose all your content again.