Since my big comp went down, i am  using 4.6 on win 7 old quad core with 2gb mem and get not responding but leave it and used get crashes.
If you using nvida card you need go into nvida settings for program, I messed about with settings and get no crashes.
Radion card I found is superior to nvida for gaming as you don't have to mess about with settings unlike nvida.
So got into settings and see if help's you.