I have ArcGIS v. 10.5. It crashes alot. So I'm hunting to see if there are updates to the installation that i have which will improve my user experience.
Is ArcMap crashing on any specific task or does it crash randomly?
Is it specific to a map document or does it occur with any map document?
Try to run ArcMap with a different user profile on your machine and see if it crashes.
I'd check all this before trying Resetting your ArcGIS application profile. Even Esri Technical Support will not directly recommend doing this for any issue directly.