Monitors refresh rate locked, and horizontal lines

I have two questions answer any if you can, I have a ACER PREDATOR Z35 and I want to change my refresh rate but when I go to change it in advanced display settings there is only an option for 60hz.

My second question is that when I’m using the monitor on screen there are dim horizontal lines throughout the screen that kinda annoy me and I’m wondering what I can do to fix that there is an attached image of what it looks like

PLEASE HELP ME WITH ANY ONE OF THESE TWO PROBLEMS.

also if anyone has like recommended color graphics settings that would be nice cuz I feel like my monitor isn’t looking the best with that.

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William_mk2

Alph

Try windows x
go to device manager
expand display adapter
right click on display driver - uninstall
Restart the computer

It should work fine..

If it is still not working
Uninstall the display adapter from device manager
Dont restart the computer.
Go to support.acer.com
chose your country
type snid or chose your model
go to drivers
Install the display driver

After installing the display driver check the refresh rate.. Check the display colors..

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