when ever I try to maximize my minecraft, It will some times crash and close minecraft, or turn my entire computer off, making me restart it.

Put the summary of the bug you're having here

What I expected to happen was...:
Minecraft would maximize to full screen

What actually happened was...:
Most of the time it would either quit minecraft or turn off my computer

Steps to Reproduce:
1. Open minecraft
2. once at menu, maximize
3. it will either maximize or crash

• I don't know if it is only me, or other people.