If Windows Store or metro apps, e.g. Solitaire, don't load try this:
Rename Cache folder to Cache.old within Users\{Username}\AppData\Local\Packages\WinStore_cw5n1h2txyewy\LocalState
Create a replacement (new, empty) Cache folder inside LocalState;
Restart Windows and see if Solitaire collection is there.
It should still have all your statistics.
If all OK delete Cache.old.
Worked for me a few minutes ago..