Windows 10: My new laptop keeps freezing, crashing, and the screen keeps turning black, as well as a...

I recently purchased a new laptop with good specs and a high resolution screen 2-4 months ago. I have rarely used it as I have been on break I'm a university student, and have been on break for about 3 months. When I do use it however, there is never a time where I don't come across a single issue when I am using it. Often the issues happen when I first start my laptop up, and these issues can range from blank screens to excessive bootup time 10 minutes for a new, rarely used computer??, overheating and apps like Microsoft edge crashing with just a few tabs open. My laptop will overheat

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Firefox 3.6.4 keeps crashing for me

Just updated my laptop with firefox 3.6 and now my laptop is crashing.

My desktop is fine.... WTF is wrong?

Every time I click on firefox, my laptop would freeze, go black and reboot.

I don't want to unintall firefox now because of all my bookmarks and crap.

AND I can't get to them to "export" or make a backup of the bookmarks because firefox keeps on crashing and freezing my laptop when I try to open in.

What should I do?

 

PC keeps freezing with Black Screen after updating the computer

*Original Title: you keep updating my computer to windows 10 and it doesnt work!!!!

you keep updating my computer to windows 10 and it doesnt work!!!! It keeps freezing up my computer and giving me a black screen!! My computer is new and now it is so slow even if ii can get it to work!!you keep updating my computer to windows 10 and it
doesnt work!!!! It keeps freezing up my computer and giving me a black screen!! My computer is new and now it is so slow even if ii can get it to work!!

 

New laptop hardlock with black screen

I have a new notebook, running Windows 10 Fall Creators Update, which is randomly freezing, showing a black screen. System specs:

• intel core i5
• HD is an SDD, 250GB
• GPU: Intel HD graphics 620

Symptoms:

• happens randomly, related to no particular reason, time of the day, and programs running
• when freezes, the notebook screen is "active" (back light is on) but completely black; external monitor, connected via HDMI, is black as well
• when freezes, no key input is responding. I tried to press "CAPS Lock", which has a led on it, and the led is not toggling
• I noticed I can keep the PC on for several days, without any problem. It always freezes whenever I'm actively using it

What I already tried:

• reinstall Windows from scratch (even starting from an external USB drive)
• run windows in "clean boot" mode (all non-MS services disabled, all startup programs disabled)
• update the BIOS, and all "relevant" drivers (GPU, System Firmware, network interface, bluetooth, ...) of the PC to the latest version
• testing the memory with MemTest86+: no issues, after several steps
• stressing the GPU with FurMark: reached quite an high temperature (70°), but no issues
• stressing the CPU with IntelBurnTest: reached quite an high temperature (70°), but no issues

Now, I would guess it's an hardware problem, but the strange thing is that we ordered 6 identical PCs, and this is happening on 4 of them. Therefore, for "statistical" reasons, we don't think it could be possible that all of them shows an HW issue... It only happens with a different rate from one PC to another (for instance, happens daily on my PC, and once a week on another)
Any idea on how to investigate this issue further?
Any test / improvement I can do?