There's nothing more annoying than minimizing your game accidentally by hitting the windows key so I decided to search for a solution and I found it here: http://johnhaller.com/jh/useful_stuff/disable_windows_key/
Basically what this does is disable the pertinent windows key so you won't accidentally minimize your game, now the benefit of this is that you do not need extra programs running on the background to block this key.
Now this post is made only as a personal reference so when I format my PC in the future (and I do that quite often) I know exactly where to go to block this particular key. If you want to try this out please read the warning on the site I posted and then proceed if you want.