At the moment it seems to be confined to the UK, and only to folks visiting certain porn sites, but if this is decided to be all legal an above board then it opens up all sorts of worrisome scenarios It will undoubtedly spread beyond the UK.

http://technology.guardian.co.uk/wee...091354,00.html

http://technology.guardian.co.uk/wee...023190,00.html

Of couse, you can always reinstall Windows, nobody could prevent you doing that on your own PC.