NVIDIA Display settings are not available, you are currently not using a display connected to your GPU?

I've been trying to get my GPU (gtx 1060) to work, but my new PC is only using the onboard graphics card. I have my LENOVO 21 inch monitor connected to my iBuyPower PC through…
HDMI
Monitor's VGA port converted to PC's DVI D port (only port for the graphics card, or so i think.) My monitor does not have a DVI D port. Only HDMI and VGI

I downloaded the latest NVIDIA drivers, still won't work. This set up is brand new. Any ideas?

Added (1). **I'm plugged in through both HDMI AND VGA>DVID… Or else monitor and pc won't be turn on with eachother

Is your psu large enough to power it all?

check that with a psu sizer app online. I use the one on the lower left of newegg.com's power supplies page

and does your 1060 have an aux power connector? Is it maybe not seated properly or not working?

HDMI, DVI, and Displayport are digital and adapters without electronics. VGA is analog. DVI-I has 4 pins for analog so vga to dvi-i exists. You should use digital only if possible.

Your monitor should be cabled to the graphics card; not the motherboard.
If the monitor has HDMI, you use that. You can get an HDMI to HDMI, HDMI to Displayport, or HDMI to DVI.
VGA should not be used.

There are 2 sections of video outputs on the back of your PC. The first one (probably on top) is near USB, audio, and ethernet ports. This is your motherboard, and connecting the monitor here makes it use integrated graphics. The second one (probably on the bottom) is just video ports. This is your graphics card. Plug the monitor into the graphics card to make it use the graphics card.

With no maker or model number of any components (PC, motherboard, the video card maker and model number besides "GTX 1060" and the monitor, the others just have to guess what you have done and how connected and what is being used.
You must give ALL DETAILS in order to get good and reasonable long distance guessing.
From you:
"Update: **I'm plugged in through both HDMI AND VGA>DVID… Or else monitor and pc won't be turn on with eachother".
This is all wrong.
And only one, one only video cable should be connected to monitor. If you connect both HDMI and VGA, then the system picks whichever it wants, not whichever you want.
Also, monitor models with multiple ports either have an automatic signal sensor or a button or a menu entry to choose which is used.
And some GTX 1060 cards under some operating systems need a driver installed to get beyond the basic imaging ability on any port.

The GTX 1060 has an HDMI port… Use it… Go to who made the video card, download the driver from them… Have no other video cables plugged in…