Originally Posted by Iandefor

That's silly. Of course if you leave the Windows partition untouched for long periods of time it's going to need lots and lots of updates. That's true on any computer. I had the same problem when I dual-booted XP with Linux. Is the correct conclusion that PC's are made for Linux and should stay that way?

No, the correct conclusions are that you really don't have much use for Windows and you might want to turn Automatic Updates off.