Everytime I click play, the game waits a moment then crashes and tells me about some error!

On Minecraft 1.11.2, the new launcher came out. The first time I opened Minecraft via the new launcher it worked. But after that it said that some error keeps occurring. Here's the report:

The game crashed whilst initializing game
Error: org.lwjgl.LWJGLException: Pixel format not accelerated

Plz help I've tried updating Java, fighting off viruses etc. but no matter what I do, it won't open. Plz Help ;-;!

(also idk what 'Affects Versions' means in the create issue page, so I just randomly clicked on 2.0.774 windows)