People probably aren't going to want to download a rar file just to see your screenshot, you'd be better off putting it on a hosting site and pasting it here.
When you updated, were you able to log in with the same profile? On my Windows 8.1 laptop the saved games are only under my profile, and it's in the Documents library. You can try hitting the Windows key to go to the tiles screen and just start typing the first few letters of the name of a saved game. Then go to the files tab and see if any files were found.