What the title says, basically.
I had issues with my pc, but I've just changed CPU, motherboard, and Hard Drive and I was able to render more complex scenes before with no issue at all. My drivers are up to date.
My PC:
CPU: AMD Ryzen 7 1700
GPU: Gtx Geforce 1060
RAM: 16gb DDR4
MOTHERBOARD: ROG Strix B350F Gaming
Using Blender 2.79
Consider sharing your .blend file so that others can inspect it. You can upload it at http://blend-exchange.giantcowfilms.com/ and then paste the resulting link as part of your question.
– Mar 12 '19 at 18:20