Hi, I have been able to get course-v3 running reliably on my Windows 10 laptop (/w 1050 TI GPU).
Here are the steps: https://github.com/parthopdas/c-fastai2019/blob/master/README.md
I have also verified with nvidia-smi that my GPU is indeed getting used while training.
Checkout the few scripts under the tools folder.
Let me know how it goes for you.