Go to (http://www.videolan.org/vlc).
Step 2

Download the VLC media player. If you have a Windows computer, click the Windows link under Binaries. If you have a Macintosh, click the Mac OS X link directly below the Windows link.
Step 3

Once the file is fully downloaded, you may install the media player.
Step 4

Locate the .ISO video that you want to watch, and right-click it. On the pop-up menu choose Open With>Choose Default Program…
Step 5

On the resulting window, click Browse… and find the VLC installation folder in C:\Program Files. Open the folder, and double click the VLC shortcut (it’s an orange traffic cone).
Step 6

You will now be viewing the Choose Default Program… window again. Check the checkbox next to the text that reads: Always use the selected program to open this kind of file. Click OK.

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