Everything on my desktop is slightly bigger. And it all just looks weird?

So I got on my computer, after it had just restarted, and I noticed the login screen was huge. I just shrugged at this, and I continued to login. I then noticed all of the icons were huge as well, and some of them weren t even on the screen, because everything was zoomed in. I then switched my resolution to the highest option. This helped a lot, as now I can see the entire screen, but the bar at the bottom of the screen with all of the apps such as google chrome looks smaller, and it's pretty annoying, and everything else just looks odd. Also, whenever I start up minecraft and expand the window, everything in the distance is blurry. My render distance is 10, and before, things close to me weren t as blurry. The last thing, in minecraft, items on my screen are zoomed in somehow, so sometimes they go off of the screen and it is VERY annoying. If anyone has an answer, please help!
PS: I'm on a PC, running Windows 8.1

Added (1). Update: I forgot to mention… Everything on the internet is odd, too. Text looks more blurry, in fact, everything looks slightly more blurry, which is very annoying.

Yeah

Reload video driver for your GPU, whatever it is.
Best guess from your information.