Yes, I play on my PC Windows. But how do they suppose to appear automatically if I download the latest version? Won't they appear as two different folders because of the versions?
If you have not cleaned the game folder in C:\\AppData, everything should be saved. Do not delete the old version yet, just download the new version and check it out. If the saves are lost, the same guide to transferring saves has a path to them on your computer, which you can use to transfer the saves manually.