I was have issues with Microsoft office 2013 so decided to do a program recovery using the change option. After reinstalling and entering the correct keys I often have problems opening the applications. I may have to try 3 or four times and occasionally I get a notification to open in safe mode which does not work. Sometime I get a notification that the program has stopped working while opening and other times it just hangs. I have tried doing updates with no change in behavior.