Game freezes, crashes or both.

helenofthesims​  How much data would you lose if you wiped this computer?  I ask because your dxdiag lists two different kinds of BlueScreens and two serious crashes of the graphics driver.  I could try to help you address these separately, but since the computer is new and could have several distinct issues, it may well be more effective to reinstall Windows from scratch.

If you're willing to do this, there are plenty of guides online for reinstalling the OS.  The key here is to download the motherboard's chipset drivers and the Nvidia driver separately, saved on a USB stick, and perform an offline installation of Windows.  Then you can manually install the drivers before going online.  This is to make sure you get the proper drivers rather than letting Windows choose for you.

The newest Nvidia graphics driver is here:

https://www.nvidia.com/en-us/drivers/details/245673/

For the chipset drivers, find the motherboard model, which should be in the documentation you received with the computer and at the very least will be printed on the board itself.  Google "[model name] drivers" and find the support page from the manufacturer.

BlueScreens and LiveKernelEvents are usually a software problem, so it's very possible there's nothing wrong with your hardware at all.  Reinstalling Windows may sound daunting, but it's usually not a big deal, and it's certainly preferable to sending the computer back.  After all, if you return it, you'll lose all the data stored on it anyway, and you also won't have your new computer to play with.