if you've got the same set up as me, try this:
go to your control panel, and click on 'Appearence and Themes' on the new screen, on the left hand side, there's a list of other links. Fonts should be one of them. open that folder and all the fonts you have already on your PC should appeare. now, wht i did, was drag the fonts i downloaded into the fonts folder...it seemed to work, but i'm sure there's an easier way!
i hope this helped some people!!