windows photo viewer can't save the changes to this picture iphone 4s

how to rotate photos in windows 7 .
windows photo viewer can't save the changes to this picture iphone 4s.
this program may help,
download and install.

http://www.steelbytes.com/?mid=30&cmd=download&pid=15&lang=eng

install, run the program, then drag all photos into it. wait sometimes. then u can rotate as usual in Windows Photo Viewer.
have fun!