Unbearable stuttering/lagging on the brand-new gaming laptop.

[ZoDX32]

Please Help!
Laptop: HP Pavilion 15-bc404ur.
BIOS: AMI F.21 for now (early AMI F.18).
The problem refers to only on one of these elements: HDD/BIOS/MotherBoard/RAM/System/pagefile/CPU.
At the first using of computer, everything is lagging and stuttering already.
System freezes on the very first reading/loading ANY file from HDD in some seconds (from byte to megabyte, perhabs it's the process of RAM's working not HDD's), sometimes system crashes,
sometimes it's totally freezes and stop working. And yes, disabling pagefile didn't gave any help. Here is the example video of some stuttering moments:
Youtube
Computer is brand-new, no damages, just puurchased.
When purchasing there was only OS "FreeDOS". So i just installed Windows 10 Pro 64-bit by USB (with Rufus burnt, ISO-image from official site of microsoft).
Also i don't have access to "advanced" options in BIOS, his updating did not gave any changes. There is no OEM-key whether on BIOS/OS, also i noticed on the BIOS menu this:
"Factory installed OS - non-windows".
Please don't tell me that my HDD is broken and i need to buy new SSD, i need another elementary solution of this problem, it has to be.
Probably the way of solution is to re-flash bios, yeah? (i absolutely don't know these stuff's btw)
I'm suffering with this problem whole 6 years, IMPOSSIBLE to play!!! 😞
Just like this problem was on my previous laptop acer aspire e1-772g (OS "Linux Linpus", same with no BIOS "advanced" options, no OEM, etc.)
I'm going to say, nothing i could do from windows, nothing helped.

[KrazyToad]

@ZoDX32

Welcome to HP Support Community

I suggest you run an extensive Test to confirm the Hardware Functionality

- Shut down the Notebook completely
- Turn it back on, then tap the Esc key repeatedly until the Startup menu screen is displayed.
- Press F2 to select System Diagnostics.
- Click System Tests, then click Extensive Test.
 

Keep me posted 

[ZoDX32]

I've tried it, everything is PASSED. No changes at all. I might think it's from OEM-key missing on BIOS. And also there is "Factory installed OS - non-windows" on BIOS menu.

[KrazyToad]

@ZoDX32

I suggest you download and run the HP Support Assistant from this Link: https://www8.hp.com/us/en/campaigns/hpsupportassistant/hpsupport.html?jumpid=va_r602_us/en/any/psg/p...

HPSA will automatically search for all the latest drivers for your Notebook

1. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.

   

2. Click Check for updates and messages to scan for new updates.

   

3. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.

4. Click the update name for a description, version number, and file size.

5. Select the box next to any updates you want to install, and then click Download and install.

Also ensure Windows is up to date.

Select the Start  button, and then go to Settings  > Update & security  > Windows Update , and select Check for updates. If Windows Update says your device is up to date, you have all the updates that are currently available

If the issue persists I suggest you contact HP Support for further assistance since it's a brands new Notebook

1) Click on this link - www.hp.com/contacthp/ 
2) Select your product type below.
3) Enter the serial of your device. 
4) Select the country from the drop-down. 
5) Select the chat or get phone number options based on your preferences. 
6) Fill the web-form and proceed further.

Thank you and have a wonderful day 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.