After going through the tutorials on this website/forums I decided I wanted to refresh my install of WDP. The reason was I unpinned a lot of the apps, or even uninstalled them.

1) The problem is that whenever I tried to refresh WDP it always failed. I tried refreshing it by mounting the iso to the native Windows program, USB HDD (way I installed it.

2) I uninstalled apps also, so can I get them back by refreshing or would a system restore or something else be needed to be done.

3) One More thing, some of the apps that were already installed when installing WDP did not run for me..I wanted to try things like flashcards and such but it just would not run from the Metro UI