Some keys stopped working on Dell windows 10?

I was just playing a game called Minecraft on my computer when some of the movement keys for Minecraft stopped working. Only the keys I use for Monecraft stopped working (W.A, S, D, Capslock key from typing, and r button for 3d preview). And they don't just not work for Minecraft but they don't work for the whole computer. I can't even log in to my user on my computer because it won't let me put it the specified keys for my passcode. Can anyone help me with this?

You need to download your drivers from dell website

Micktsoft is not the only computer operating system in the world there are others that are Free superior and far more advanced, they are up2date.September 2015, you can check out the latest releases in the web links be low under the picture of the free operating system desktop to show you what they look like they are no different to use than windows is,
This is a picture of Zorin Linux desktop Some keys stopped working on Dell windows 10 - 1

It sounds like a hardware problem. Try a different keyboard.