This is going to be a step by step with pictures, and little to no text. It's really that easy. Step 1: Searching for AdBlock Plus
After you've updated Windows 7. Internet Explorer 9 is automatically installed. This is just a two step process of knowing it's been upgraded, and is ready to run and get you on the web.
From a fresh home install of Windows 7 (not factory install) this will guide you step by step to updating your Windows 7 and getting it up and running.