Win 8.1 Pro - Sharing issues !!

I don’t ever share complete drives but only folders so when I installed 8.1 Pro from scratch, I simply added a share to the media folder (rather than “My documents”) on my desktop PC’s 2nd drive for the main user I’m logging in with. Then I logged in from the WDTV over SMB with this user’s credentials and now I can stream all media without any issues.