XP-tan is a personification of the Microsoft Windows XP operating system from the OS-tan meme series, where various operating systems are depicted as anime girls. She is known for her energetic and cheerful personality, often portrayed as helpful and friendly, but also somewhat clumsy. XP-tan typically wears a blue and white sailor outfit with a green hairpin mimicking the Windows XP logo. In the OS-tan series, she represents the popular Windows XP OS and interacts with other OS-tan characters, often taking a central role in group dynamics.