This is an ancient form of exploit that was (and maybe still is) very popular with Windows: from the ctrl+alt+delete lock screen, you could open things like Hel

This is an ancient form of exploit that was (and maybe still is) very popular with Windows: from the ctrl+alt+delete lock screen, you could open things like Help and accomplish similar actions, eventually getting access to a browser (which, in Windows' case, was also ~Windows Explorer with full file system access).