My screen has gone black with just the cursor showing.

Hello, I was deleted things from my computer to make more space for memory then it froze. So I turned it off with power button. I turned it and said "safe mode, safe mode with Network, start windows, etc". I clicked Start windows and it just went to a black screen. It just didn't change. I've looked on here for solutions. Most of the answers have the computers data or memory completely erased. I want to know if there's a way to have my computer work again with all my files, documents, photos, music, videos staying? If there's a work where everything doesn't have to be deleted. Thanks.