Windows 10: Hi there is a green line on top of my screen if I screenshot it, it wont show up

I already tried the device manager and the Adapter thing but it will not work almost everything does not work there is no error message.Here is a screenshot:

:)

 

There is a green line in my screen ....

There is this green line unexpectedly appeared on my screen. I've tried multiple ways to get rid of it but, it didn't work for me. I am aware that I might have to get a screen replacement but I'm currently unable to do it... The green line appears even when starting the laptop in the logo screen. Please suggest any way to fix this issue! However I've tried to include a screenshot, but the green line doesn't appear there?

 

Green screen

Hi Nancy,

The issue you are experiencing may be due to a corrupted software or a hardware failure on the computer. However, we need to perform some troubleshooting steps to isolate the cause of this concern. Before we proceed, may we know the following:

• What were you doing when you encountered the green screen?
• Did you make any changes on the computer prior to this problem?
• What troubleshooting steps have you tried so far?
• Are you also getting any error messages when experiencing the green screen? If so, can you send us a screenshot?
  Note: Please do not include any personal information.

 

There is a green line in my screen ....

*Sigh*
I'll have to do a screen replacement after all, right?
However, this green line didn't appear in my screenshot... is there a particular reason for this?
Anyways, thank you for replying sir!