Windows Vista
One of the most crappiest computer systems in the world.

For most flash games and Youtube videos, it requires you to constantly move your mouse to continue watching the video without it freezing up. The computer may also freeze up at many points and occasions. It's an opperating system you dont want to have.
Guy 1) What is better? Windows Vista or 7?

Guy 2) 7.

Guy 1) Why?

Guy 2) Because Vista is bullshit.