Hi! I have a custom build from skytech. ASRock mobo, GeForce GTX 1660Ti graphics card, 16 gig RAM, 1TB SSD and running win10. I've had the PC for just over 3 years and she's been perfect. A couple weeks ago I went to boot up and after the boot screen I got the black screen. I've tried several fixes, ultimately reformatting from a USB flash drive tool. A friend said it sounded like my SSD was corrupted, so I replaced it and it didn't help. On one occasion, I managed to get it going by rolling back the display adapter driver, but as soon as I went to GeForce and got the driver for my card, black screen again. I took it to a repair shop and he said it's the graphics card. So I replaced that with the brand new 1660Ti. (It was a standard 1660 prior to replacing it) After the new card was in, she booted right up, and ran beautifully until windows updates needed a restart. Once I restarted, I got the black screen again. I went into safe mode to remove the recent updates and none of the pages would load to allow the uninstall. So I was advised to try reinstalling windows again. Now, after several attempts, I still can't make it thru the installation without the black screen cutting it off. Oh, I have run the PASS memory test also, and it showed no errors.