Windows 10: Windows screen SUPER broken

Hello windows support team. I have a minor problem it bothers me so I'm writing this. When I went onto a program today, I pressed backspace. Guess what?? THE SCREEN TURNED MANY COLORS. Of course it was only for a few seconds. I tried it multiple times to see if it only happened once. But, it turned multicolored every time! I restarted my computer but when I tried it again, it turned multi colored AGAIN! I need a response quickly.



Side note: I took my computer over to our local church for a gaming event where anybody had access to it but NOBODY went on it. And the issue wasn't on my computer the day after it but on Tuesday, the issue happened. Help PLEASE!



Side note #2: When I press delete in blackboard collaborate, it's the only time it chimes (when no letters are there to be deleted of course) then the multicolored screen happened again. (only for a few seconds of course.)



Side note #3: sorry for the side notes. AND when it goes multicolored, it spreads across the entire screen.

:)

 

Laptop with broken screen How much?

I would like suggestions and look in local stores. I dont wanna buy a laptop from someone online. Sorry. But could be a good idea if you asked him about the performance on older games. Gonna make a list ofall laptops people suggest me.

Remove the screen for space purpose here its small desk and if the screen is opened it will hide my 22 inches lcd

 

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

 

Is my graphics card broken?

UPDATE: Please see here.

I have a Sapphire HD 4830.

When I boot into XP all is initially fine and I am able to see the desktop.

However, when I click on the start bar and navigate a few steps, I receive an immediate white screen of death and a total irrecoverable lock-up.

I am confused about what this could mean and I would be grateful for any suggestions on the best course of action to test and repair the problem.

Does this sort of issue suggest that the graphics card is irretrievably broken?