Black screen after downloading Windows 8.1
Hello. So I got my laptop this summer and I haven't got any problems with it, before today. Yesterday I updated my computer to Windows 8.1. After I did it, it said that I needed to restart. But I did that later, because I was doing my homework. Before I went to sleep, I turned my computer off. And it was updating too. Next day after school. I turned on my laptop and wrote my password, which I do normally. But after when it logs in, the screen is all black. How can I fix this?