That's when I move from one photo to the next in the previewer after I've edited an image in Developer.
Try manually disabling the graphics processor: Adobe Photoshop Lightroom Help | Lightroom Graphics Processor Acceleration (GPU) Troubleshooting & FAQ.
If that doesn't help, if you have an AMD graphics card on Windows, you should roll back to an older driver: Adobe Photoshop Lightroom Help | Issues with Lightroom CC/Lightroom 6 and AMD graphics cards | Win.
I rolled back the driver, no help.
I could find the preferences file but couldn't find a way to open it (PC).
I think I may have found the cure. I have System Mechanic.
I had turned off the accelerator for video/photo, no help.
When I turned off of the acceleration LR didn't crash!!!
I hope this is the answer for me. I'll let you know if it doesn't last.
Thanks for helping out.