Me-tan is a fictional OS-tan character representing Microsoft Windows ME. She is usually portrayed as a cheerful, energetic, and somewhat clumsy girl, often embodying the mixed reputation of the operating system she represents. In OS-tan fan works, she appears as part of a cast of anthropomorphized operating systems and software mascots, frequently used for parody, comedy, and affectionate fandom references. Her role is mainly as a symbolic personification of Windows ME within the broader OS-tan universe.