A friend of mine recently purchased a secondhand computer with Windows Vista installed on it. Thankfully they knew that this was a beta, evaluation version of the software. They were able to remove it and install something else.
Can you imagine, though a total newbie buying a secondhand computer with Vista on it thinking that they’re getting the completed, latest version of the Windows operating system. They’ll get a shock when someone tells them what they’ve actually got.
I’ve also had an elderly couple (clients of mine) who bought a secondhand computer with Win XP on it but didn’t get the OS cd with it. Now that their pc is experiencing problems they don’t have XP to reinstall.