right, basically, about 6 months ago, i formatted my pc and installed win 7 64 bit, and the harddrive was empty (as you would expect).
i put my documents and pictures etc on from a backup disk, and i deleted them off the backup disk because my backup disk was nearly full. (for some reason, i kept the pictures, about 10gb worth)
next time i turned my pc on, everything was gone, nothing to be seen, but the harddrive was still full of 15gbs of stuff. i searched all my pc using start menu and the search bar in documents (top right) and nothing was found. they're still there somewhere, but my pc thinks they are not there. so, i put my pics on again from my backup disk, and it added another 10gb worth of stuff to the local disk c bar which tells you how full it is.
so, now i have 10gbs of pics, and around 15gbs (or more) of stuff that i can't access, like docs, music pics etc.
please tell me what i could do