Aaaaaagh sob sob

Having used the OEM Recovery discs to restore the operating system, Microsoft now says that the Windows it has put on is not an authentic version, and it wants me to buy Windows 7. Hmmmmm. And my IT technician just sits here at 22.36 playing Solitaire on his laptop. Why do I accomodate and feed him? Ah - he's a lodger and I occasionally get some rent. Oh well, I suppose as he's been at it all day I can't really complain. Just as well I have my own laptop!