Windows 10: how do i stop my screen from glitching?

My screen is glitching going from the usual screen to a black screen really quickly and my cursor is blurry/pixelized now. It's getting worse. I think it's a screen issue but I'm not sure and I don't know what to do.

:)

 

glitching screen and glitching videos

Hello,

Recently my laptop screen started to freckle\glitch while playing videos either on the internet or on my laptop so I followed steps suggested as to uninstall and re-install the graphics update however, it happened again not so long after I did that (1 day later) and I fixed the display and so it stopped but the videos appear to be glitched? like I could see the RGB (there is a color stroke that appears ONLY while watching videos and I tried to take a screenshot and while trying to trim the photo I found it looking normal so it's only via videos

I'm using HP ENVY Laptop - DESKTOP -LUQEG7V

 

Overclocking / Undervolting guide for Vega 56 or 64?

Here's a quick laundry list:

List of software to use for overclocking and testing
Examples:
Wattman (and how to find and use it, like an overview, including profiles)
Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

Step-by step overclocking in Wattman
Fan speeds
Power limit
Temp limit
Voltages
Core speeds
Memory speeds

 

Glitching After Updating To Windows 10

Hi Ahsiek,

Display errors might have caused by an incompatible drivers. For us to isolate the issue, we would like to know the following:

• What is the
  build number and version of your Windows?
• When you say glitch, does it mean that the screen flickers?
• What troubleshooting steps have you done so far?
• What is the make and model of your Windows 10 laptop?

In the meantime, we suggest that you update the graphics driver of your Windows 10 by following the steps given on this article:

Update drivers in Windows 10.

We look forward for your response.