Unwanted emails?

I am getting 4 emails daily, chineses titled, none ever opened, in my junk box which totals ,if left, to 40 by the time the 10 day deletion cycle clears them. I have to search to make sure someone on first contact hasn't been dropped into junk box which is a pain.

Is there a way certain emails can be totally blocked, or how do I ensure wanted first contact emails arrive in my in box? System using:> Hotmail emailing. Windows 7 Ultimate and for good measure on Acer laptop. Green as grass new user.