Ideas after you config file. And what GPU model?
sgminer.exe -k x16r -o stratum+tcp://us.ravenminer.com:5678 -u myrvnwallet -p worker1 -X 256 (also tried -X 64 same result)
This is a fresh Win10 install updated, redist installed, blockchain drivers XFX Core Black RX580 brand new out of the box with stock bios, installed in the pcie 16x slot...