If you are reading this post in Internet Explorer then click on the lovely logo to the left. It will take you to site explaining why this is such a bad idea. It explains what your alternatives are and how they will help to stop you getting overrun with pop-up windows and assorted other bad things. Internet Explorer is so very last century folks.
Or you could just go straight to the Firefox home page and download it direct. Whilst you are there, and if you still use Outlook Express to read your email (Dad), you should get yourself a copy of Thunderbird. It’s a state of the art email application that will help you to rid yourself of those nasty spam emails.