Adobe Premiere freezes entire computer, requiring hard restart

Hello!  I don't know if other people are experiencing this problem but I've read of similar events with others.  Here's my issue.

Haven't been using Premiere for long, more intensively over the past few days.  What I experience is, no matter really the file or resolution with which I am working, at a random moment, be it closing the program, opening a dialog box, choosing an effect (not these specifically, it can be anything at that particular moment) after working for an inordinate amount of time, the whole program, including my complete system, freezes.  This includes movement of the mouse.  I have to restart the computer completely using the power button each time.  Not sure again if others are experiencing this problem but I'd be interested to know.

Specs:

AMD Ryzen 7 3700x

NVIDIA RTX 2070 Super

16 GB (2x8 GSkill Ripjaws)

ASRock B450m a/c

Corsair 650~w power supply

M.2 and a Sata SSD

Would love to hear your input.  Thanks!