For editing photo's Howard I use photo studio 5 which I've had for years.
a) There are many free downloads, one that I also use and would recommend is paint.net. It's a good editing programme;
Google paint.net and download.
b). To close down from the apps screen tap the icon in the top right of screen and select shut down.....or,
In either screen, move the cursor to the bottom right of screen, select settings, then power then 'shutdown'.
