Download image for which "Right Click" is disabled

First thing you need is Google chrome.
So go to google chrome site and download it
Following is the link
Download google chrome
Now, open the site from which you want to download that image.
Right Click the image and drag and drop it to the current tab i.e at the top where tabs are located.

Now, google chrome will automatically download the image for you to the downloaded folder.

Though there are many ways to do this..this is one of them.
Njoy:)