Premiere Pro CC crashes constantly and can't play videos after Multitasking

Have you tried using proxies?

I am using old version of stuff ( cs6) and have a custom build editing computer that is NOT hooked up to internet. I use a laptop for email and stuff like simple scrubbing through clips I shot etc. But I don't use the laptop for serious editing. It's supposed to be a high end 'gaming' computer ( the laptop) but it is NOT up to par for real editing ( even just full HD ).

In the old days, like a few years ago, when people edited stuff it was very demanding on the resources of the computer. It needs to be done sorta just focusing on that activity. Otherwise the resources of computer get overwhelmed ( memory shared with other stuff, CPU getting different chores to do at same time, etc. )

So, in short, multitasking can mean a lot of things, and it may be that you should just focus on editing task and NOT do a lot of other things at the same time.

Someone here was upset recently cause he got phone calls through his computer while editing and couldn't understand why that multitasking activity interrupted his ability to keep editing when he got off the phone.

My personal viewpoint is that if you want to edit, just do that and nothing else. When done go do the multitasking stuff.

Good luck !