Laptop Black Screens at Windows (or other OS)

Laptop Black Screens at Windows (or other OS)

I recently purchased a Razer Blade 14 (2016) knowing that it was in non-working order thinking this would be a simple fix however it has prove to be much more difficult. The seller stated that there was a "problem with the GPU" that the computer would boot into the bios but once if he tried to boot into windows it would black screen. That was the only history I got.