Windows 10: How to zoom out on 2nd monitor?

I found another thread for this, but none of the solutions work. changing the scale ONLY affect my Laptop screen. Aspect setting on the monitor are greyed out on ALL modes, so i cannot even change them if i wanted to. It works like normal on 2nd screen only and duplicate modes. But on Extend, it zooms way in like I set the windows scale to 300%.i tried unplugging the HDMI cable, didnt work. I tried unpugging the monitor power cable, didnt work.how do i zoom out JUST the 2nd monitor when in extend mode??

:)

 

Windows 10 2nd monitor resolution zoomed in

my graphics card is up to date, I don't think it was the problem ,my 2nd monitor is still zoomed in

 

Color Display on 2nd monitor

I am using Windows 10 on a Dell laptop with a 2nd monitor which has been working fine. For some unknown reason I have suddenly lost the full color range on the 2nd monitor. I don't know if I have changed some setting by accident or what. I have tried
resetting the defaults but that didn't change anything on the 2nd monitor. The primary screen on the laptop continues to work fine. Any suggestions what needs to be done to restore the full color range on monitor #2?

 

Windows 10 2nd monitor resolution zoomed in

i recently updated and installed windows 10 on my laptop and everything was looking good except for my second monitor(Tv screen) .the screen is zoomed in and i only see half of the taskbar(the bottom of the tv literally stops at
the very middle of the taskbar)

I've tried every resolutions with with every tv screen settings and none seem to make it fit. just before upgrading to windows 10, windows 8.1 had my 2nd screen fit the computer(except for a black border around the screen) does
anyone know what i should do to fix it?