Windows 10: How can I remove the black stain, vertical and horizontal line from my extra Monitor?

It is located at the upper part of the screen. I think it is not physical damage because I groped thoroughly, but it was still a smooth surface. Please help me with this.Thanks!

:)

 

Vertical and Horizontal Lines

The problem I had with vertical and horizontal lines has nothing to do with Windows. I have an ASUS monitor. There are small buttons along the bottom of the screen case. It is easy to inadvertently touch the buttons. One of them turns on an "alignment
grid." Simply push the button to turn it off.

 

Monitor has horizontal & vertical lines

Hi,

I am unable to see anything on my monitor except for horizontal and veritical lines. This computer is brand new, has worked for a month. I think it's related to the connection from the monitor to the laptop as when I push on the monitor I was able to see
a little the other day. I'm unsuccessful in seeing anything now. I've tried to to restart, I've removed the battery. any other suggestions or do I need a technican?

Dell Inspiron 23 i5559-4682SLV Signature Edition

bought on 12/5

thanks,

Mike

 

Vertical and Horizontal Lines

I was away this morning and my Windows 10 computer performed a major upgrade. The result is that I now have two gray horizontal lines and two vertical gray lines on my screen. They form nine rectangles that overlay every program. I checked screen settings,
etc and nothing works. My system, computer and monitor, is from ASUS and worked fine until the "update."