Hi all after recently updating windows xp i now get a message on start up telling me i dont have a valid version of windows, i have never had this problem before i have had windows xp installed on my pc since new. also there is an icon in the lower right tool bar telling me that my system may be at risk all the time. When i follow the link to microsoft website it tells me i have to pay for an activation key. Is there any other way around this?, i have tried to carry out system restore to before the update and it wont let me HELP
