I need to update my drivers and I don't know how

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here
I thought I could click play and go onto Minecraft
What actually happened was...:
Describe what happened here
It said "error" and that I needed to upgrade my drivers.
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...