Okay, I'll just run down what went down before the problem arose.
I am running Windows 10 with the Creators Update and I ran into a weird problem. This morning, when I was booting up my laptop (it's an ASUS X556UF) and I came across what looks like a black screen with the loading circle (the white spinning dots) and at first I thought it was just normal until after an hour and I knew something was up. The cursor is visible and when I pressed ENTER and hovered my mouse in some places I noticed it was detecting a text field (which is the password input for the user login). So I blindly type