I upgraded to Windows 10 from Windows 8.1. now none of my applications are working.

[WPCentral Question]

Every time I click on any of the game apps like Klondike or Microsoft Solitaire Collections, it opens the window, but then says Loading, but nothing seems to happen. I am not very computer savvy and I don't want to go trying things in fear of screwing this dang computer up more than it already is. I am so sorry I upgraded to Windows 10. The computer was working fine up until I did that.