HI Caiden. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.
Best Buy may be able to avoid 15 day return policy if was an open box and they disclosed it, but the PC manufacturer' cannot avoid the one year full Support, Service and Replacement Warranty that all new hardware comes with under law.
So keep in mind that at any time you can conctact HP Support and if they try to sell you up, tell them you just want basic warranty service under the law.
https://support.hp.com/us-en/contact-hp
Try ALL these fixes first for known issue of black screen while playing games in Windows 10:
https://www.technewstoday.com/black-screen-when...
https://howtofixwindows.com/blackscreen-while-p...
https://windows101tricks.com/black-when-playing...
https://windowsreport.com/black-screen-gaming-fix/ (Avoid ad links which intrude into editorial copy, especially avoid Restoro and Reimage ads)
https://thegeekpage.com/how-to-fix-black-screen...
https://www.youtube.com/watch?v=d8_lOCLHNg8
https://www.youtube.com/watch?v=d8_lOCLHNg8
https://www.youtube.com/watch?v=lLvcG3XS1jo
Report back results as you go so I know what else to suggest.
- If nothing there helps then go over Windows using this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done: http://answers.microsoft.com/en-us/windows/wiki...
Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files, and also Step 16 to test a new Local Admin account. Then continue with the other steps to go over your install most thoroughly.
- Update your drivers and BIOS/UEFI firmware using HP Support Assistant, or manually by using Serial Number here: http://support.hp.com/us-en/drivers Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start button. Make sure you have the latest BIOS or UEFI firmware, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now.
Updating drivers from the Device Manager or Windows Update is rarely enough. The most basic thing we need to learn to maintain a PC is keep the latest manufacturer's drivers installed from their Support Downloads web page.
- If nothing else works then do a Repair Install, by installing Media Creation Tool, open tool and choose to Upgrade Now. This reinstalls Windows while keeping files, programs and most settings in place, is the most stable method to advance to the latest version, and solves most problems. Tutorial here: https://www.tomshardware.com/how-to/fix-windows...
- Run HP hardware diagnostics by powering on while pressing the ESC key:then F2 do the long tests.
One of these steps should do it so take your time and don't skip any, ask back if you need help.
I hope this helps. Feel free to ask back any questions. Please report back results for all steps given so I know what else to suggest if necessary.
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Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.