loss of display signal

I booted the computer into the safe mode by doing Windows R and write in config etc.. and turned on the safe mode option. It required a restart and now when I turn my pc on from then things like my keyboard won’t turn on and shows a black screen not picking up the image. I can’t access the safe...

Hi, my pc has been working perfectly fine since idk 7-8 months or so. My specs are: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz 3.20 GHz 16.0 GB RAM idk what motherboard cause it's an HP prebuilt (HP Compaq Elite 8300 Convertible Microtower) Gigabyte NVIDIA GeForce GTX 1050Ti 4GB 2tb Seagate...