Random game freezes

Hey guys!
Recently I've been experiencing freezes at seemingly random times. When it happens, my screen will stop dead, my sound will die, and after a couple of seconds it tells me that the program is not responding. I usually try to wait for the program to come alive, but that never happens so I end up having to restart. It's especially annoying when inside ICC for example, and since I'm a tank, we've had to wipe cause of this several times. I've not had this issue before, and so far as I know I didn't change anything in my game. Has anyone experienced a similar issue before?
PC specs:
Windows 10 Pro 64-bit
16 GB RAM
Intel Core i7 7700HQ @ 2.80GHz
2047MB NVIDIA GeForce GTX 1060