# The XNA redistributable isn't in the prerequisites list; how do I include it when publishing?

So I created a small project in XNA 4.0, and wanted to try and publish it, and so I did. Yet when attempting to install it on a different computer it didn't seem to work.

I've read and studied about how the process of publishing works, and I saw someone in a different thread asking the same question as me, then I realized that inside the prerequisites list which is in PROJECT -> PROPERTIES -> Publish, the XNA redistributable wasn't there therefore it wasn't checked, and when attempting to install it on a different computer they needed to install redistributable on their own to make it work.

Any idea why isn't the redistributable in the list? Maybe this isn't even the problem and if that's case any ideas of what IS the problem? Thanks ahead.