First of all you mast download the software from this link: http://www.adobe.com/cfusion/tdrc/index.cfm?product=master_collection&promoid=DJDUC
Then open the setup file to began installing as shown in picture
Then click on install button , But if you don't have the serial key click on TRY button
like the picture shown
OK now click on ACCEPT button to accept their agreement terms
Then put the serial key in the field ,As the picture show , After that click NEXT button
Now choose your software then click INSTALL button
Just wait a few minutes to complete installing your software
Finally you are done ,your software installed successfully , Enjoy
Then open the setup file to began installing as shown in picture
Just wait a few minutes preparing installation , As shown in the picture
like the picture shown
OK now click on ACCEPT button to accept their agreement terms
Then put the serial key in the field ,As the picture show , After that click NEXT button
Now choose your software then click INSTALL button
Just wait a few minutes to complete installing your software
Finally you are done ,your software installed successfully , Enjoy