Hello damon,
Welcome to Microsoft Community.
Can you tell me which version of NVIDA video card driver you are trying to install? If the black screen only appears after you install the latest driver, the problem is most likely in the NVIDA provided video card driver.
I understand that you have tried to reinstall the system many times and contacted the after-sales support, but I believe that there is no problem with your equipment hardware.
If anything is unclear, please do not hesitate to let me know.
Best regards,
Mitchell - | Microsoft community support expert from MSFT