Windows 8 Gets ready to run

This post will probably get me shot at dawn for treason! But here goes.
I'm trying to transfer a couple of (free) apps from an Android tablet, over to a Kindle Fire. Which, according to an article I found on line. I can do via a PC.
Trouble is, neither my desktop PC or my laptop will recognise the Android, connected via USB.
The apps are for hobbies of mine and are not available on other systems?

You need to install adb android drivers, you can get universal ones from here

Many thanks. Haven't got around to trying it yet. But appreciate the advice.