firstly im a noob when it comes to computers... next. I have a genuine product key sticker for xp stuck to my pc. I fitted a new harddrive and the store installed xp back onto my harddrive When i go to "my computer" and check "properties" it says that XP is OEM edition My product key will not work when trying to activate it I assumed my key was OEM tho it doesn't say so on the sticker.. should it say it? How can i tell whether my key is retail or OEM? Any ideas how to figure this out?