Windows XP Home OEM: JQ4T4-8VM63-6WFBK-KTT29-V8966 Windows XP Home Retail: RH6M6-7PPK4-YR86H-YFFFX-PW8M8 Windows XP Home Upgrade: RH6M6-7PPK4-YR86H-YFFFX-PW8M8 Windows XP Media Center 2005: C4BH3-P4J7W-9MT6X-PGKC8-J4JTM Windows XP Professional Corp: XP8BF-F8HPF-PY6BX-K24PJ-TWT6M Windows XP Professional OEM: XJM6Q-BQ8HW