What do you mean by mount the torrent?

Torrent files can contain all sorts of media (music, videos etc.). At times (mostly for games), torrents contain .iso files, these are generally ripped directly from a Dvd or Cd and are uploaded by someone. To open .iso files, you need a software that will let you create a virtual drive so that you can run the setup or open the files within that .iso file.

Two popular softwares that you can use for this are 'Daemon Tools' and 'MagicIso'.

Once you download and install them, you simply need to 'mount' that .iso file into the virtual drive (magiciso/daemon tools create a virtual drive for you) and you can then run the setup or open the files.