Some questions I can answer, but one Im not sure of.
Which browser is the most used?
Thats the one Im not sure of. IE is actually the one that is the most used, but I know you are referring to which one after that.
Do I just choose one and download it?
Yes, it is actually that easy.
Do I have to remove IE??
No, you do not have to remove IE. Actually, if you was to remove it, you would have some bigger problems. The easiest way to have an alternate browser running is simply dont click IE for the internet. If you use a different icon from your ISP, then dont click it to get online(I will explain in a moment). Also, you need IE for when Windows wants to upgrade the OS.
My alternate browser is Opera, their homepage is here
. Make sure that you chose the java version for d/l. When you install it, you will get a shortcut on your desktop that looks like a big O. Instead of your normal way of getting online (no matter which icon you click), click this one. The first time it is loaded, it may be a little slow because it is figuring out your configuration and connection. After you have established a homepage (if you want to), and have clicked around a few sites, close Opera for now. Re-open it, and you will see how much faster it is then IE.
We are all curious like a cat. We wonder, we ask, we learn.
Please post back when a suggestion works, so that others may learn.