1) Download Bit Torrent
(BitTorrent is a software program that lets you download a single file from many people all at once.) HERE
2) Install the torrent client on your computer.
Once you've downloaded the torrent , open the installation file and follow the installation instructions to install it on your computer.
3) Open the torrent file you downloaded. Depending on your torrent client, you can often click and drag the torrent file into the torrent client window to open the file. You can also use the File menu to Open the torrent file. Double-clicking the torrent file will also often open the torrent file in your torrent client.
4) Start downloading the file.