We cannot always control our thoughts, but we can control our words, and repetition impresses the subconscious, and we are then master of the situation.
What does NOT work best for anyone, though, is being forced to keep a Windows partition around just to play video games. The best operating system for playing games is the one that lets you keep your word processor, instant messenger, email, and music player open in the background while you play. The worst is the one that will force you to shut all that down just to screw around for a few minutes.