Photo Gallery will not open. I have run   "Repair  all Windows Essential programs" but the same error code appears. The product version is :- 

16.4.352.0331. I am using Windows 8.1.

At the same time the above occurred Windows Live Mail stopped working - will not open - error code 80072ee7.

These problems may be linked ? 

My main concern is that Photo Gallery photos are not deleted - computer is back up onto separate  hard drive.

Garfield