Windows 10: Laptop freeze with glitch green screen

Hello!I am using Intel® NUC 9 Extreme Laptop Kit - LAPQC71ARecently, my laptop has been freezing lately in random times. I already checked my RAM using mem86 and SSD using the {properties-tool- error checking tool}. Both are good. Here are the other things I did to troubleshoot it...-reinstalling intel drivers -reinstalling gpu drivers -using sfc /scannow-using "DISM.exe /Online /Cleanup-image /Restorehealth" in command prompt -using windows memory diagnostics tool-Tried windows key + shift + ctrl + b while it was frozenImage of Glitchy ScreenI tried all of them, but the problem still persists

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Freezing screen and glitches

As I boot up my laptop it boots perfectly but after I login for more than 5 seconds later the screen freezes or glitching or maybe goes black screen sometimes. If I try to troubleshoot then green dots appears and screen freeze. I can not do anything

 

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

 

Laptop freezes and screen glitches

Hello,

I bought a (used) laptop at the start of February. (usually in my country it's better to buy used laptops that are from other countries because we barely have originals, most of the laptops are fake and overpriced so it's normal to buy it used.)

I had a problem with the screen glitching and freezing, and then one day the computer shut off completely. I took it to get fixed, and they said there was a problem with the hard drive (motherboard). They fixed it, and I got it back May 10th. a few days ago I noticed a small glitch again, but it was nothing.

Today, it lagged the same way it used to before. I'm hoping it doesn't turn off again, and I will take it to the repairmen again, but now I have trust issues so I'm asking for others' opinion. I was told the laptop was only used for barely a year (and judging by the serial number, and the service tag, that is true.) and that it didn't have anything fixed, or replaced. When it comes to the laptop itself, it works perfectly - never lags, doesn't glitch, I use Adobe programs and they work perfect. It's just that it glitches, and freezes. I have to reset it manually, and then it's fine again. But the last time, like I said, it shut off completely and wouldn't turn on. I would like to add that it glitches during random times, for example today I was just watching YouTube and that was it.

The laptop is Dell Vostro 5402.

I'd be grateful to hear your opinions.