Hello,
Before that I also encountered the same problem as you, my surfacebook2 is also gtx1060, but when I use premiere it only detected the integrated graphics, did not
detect my gtx 1060, so I tried to disable the integrated graphics, then start Premiere, but premier still can't detect gtx 1060, but use cpu for rendering. After that, I try to download the corresponding gtx 1060 graphics driver on the NVIDIA official website
(pictured), after I install the driver and start the premiere. The gtx1060 graphics card was found to be detected by premiere.