Windows 10: Screen glitch and shut down is the only fix

Hey guys,First off my computer is working after I restarted it but I wanted to know if you thought there was a security risk or something.So I was playing Roblox and my computer completely froze. The only thing I could do was a long hold on the power button to shut it down and turn it back on. This worked but about 5 minutes later my screen started randomly glitching. I tried to do win+shift+ctrl+b to restart graphics drivers but ultimately I shut down and turned back on my laptop. You can see this video of the screen while it was glitching.Now it is working again but I wanted to make sure tha

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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

 

Screen size does not fix.

Since the new upgrades the screen size is too big for my 7 YR old Toshiba Laptop, which I use constantly. I Can not access the x or the scroll bar. The character's are Hugh, stretched and distorted. I have followed every single step listed in troubleshooting
and even paid two computer techs to fix it. NOTHING WORKS! There used to be a simple one step adjustment: Settings: Display: Screen Size. Neither, Resetting, troubleshooting app, driver updates, changing to another resolution (which btw is suggested as a
fix but non existant) nothing works. I am at wits end. The last guy I paid to fix it suggested I just buy anew unit? I can't afford that. Please please address this issue asap. Thank you

 

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.