Do you get any error messages with this?
Can you specify the build of your PC along with the steps you are taking to reproduce this crash?
Have you tried reclassifying a different raster image to see if the problem persists?
No error messages just the crash report menu. I am running Arcmap on an Asus laptop with an intel Core i7 processor under Win8.1. I have tried other raster images and I get the same problem. Hope this helps.
Arcgis 10.3.3 and later 10.4 were running fine for over a year when this problem started. It actually started after I contacted Support on April 20 about a script error problem when I getting each time I tried to open a geoprocessing function. After the technician couldn't I fix the problem right then, I did a re-install and used the repair option and the problem disappeared. The technicial however made me make a bunch of changes somewhere in the system files and that may be where the new problem lies. I have re-contacted Support and am working with Nausheen on case #01778547. I hope she can find out how to fix the problem. Thanks for your response.