I cannot Install my 2012 Internet Security bought from Amazon.com

Good morning. I ned help please.

 

I got the 2012 Internet Security last week and I have been trying to install it on my windows 7 PC but it wont even start. It gives an option whether to install or not and I click YES, then nothingg comes up again. I tried it several times but no response.

I thought may be because there was the Macafee that came with the system (It's a new Dell Inspiron 5040), but I uninstalled the Macafee and am still facing the same challenge. Please I need help right now because I need to configure the system and send to my branch office as soon as possible.

 

Thanks