Recycling Windows!?

Hello everyone I had to ask this. I just went to empty my recycle bin and it said Do you want to recycle "Windows" file. That's pretty scary to think of. This really bothers me because this actually happened to me before. But when this happened before it was on a different copy of Windows XP and a different Hard drive. I thought there was just a problem with THAT Windows. (Both were Windows XP Professional). But now this is happening to my new computer as well.

Why is this happening in the first place? And what can I do to stop this from happening in the future?

All I know is I don't want to delete "Windows" file.

Thanks for the help.

Edit: I also wanted to add that if you open the Recycle bin there's nothing there. But the icon still shows trash in there and if you try to empty it, it says "Delete Windows"?

Hmmm turn on hidden files or boot up from a start disk and view those files manually through dos.

Make sure theres something there.