I have a problem new equipment evga gtx 1070 only produces 2mhs ethereum claymore driver 382.53 what may be the cause of my problem thanks for your help

I have a problem installing the driver 16.11.4 and after a reboot windows 10 pro changes the driver degrades it to 16.6 as I can solve many thanks

Recent Help buy rx 470 8gb sapphire nitro on amazon and to my surprise it does not arrive bios dual button is in another place or simply does not have dual bios