Difficulty: Moderately Easy
Step1
Consider using good old Internet Explorer if it actually works for you. Although the upgrade from Internet Explorer 6 to Internet Explorer 7 caused problems on certain XP machines (especially those with service pack one) , Internet Explorer 7 works very smoothly with Vista. Many of the new security features eliminate the concerns earlier users had about how hackable and virus-prone this browser was in the past.
Step2
Check out Firefox if you haven't already done so. Firefox is extremely popular as it was much safer than the old Internet Explorer 6 and it's also very "tweakable" with user-enabled add-ons offering functionality ranging from automatic web mail notification to checking your eBay auctions for you. It runs on Macs as well as PCs and even runs on Linux machines.
Step3
Try Safari if minimalism is your style. While this browser used to be Apple-only, it is now available for both XP and Vista. It isn't as customizable as Firefox or Explorer, but it popular with people who are used to working with it on a Mac platform and want something familiar when they work on a PC.
Step4
Investigate Opera if you're looking for a alternative to the big name browsers. It is customizable, with on-screen widgets, "speed dial" (favorite bookmarks can be assigned a digit) and chat and web mail integration, and it is usually very fast and has a reputation for being secure--as it isn't used by nearly as many people as are Firefox, Internet Explorer and Safari, it is less of a target for hackers and virus creators. There is a downside to it's lower profile, though--there are still quite a few websites that are not Opera-compatible.
Step5
Download Flock if you're looking for a browser with social networking built right in. Flock is built on a Firefox platform, so you can customize it with many of Firefox's add-ins, but it tends to load and open pages much more quickly than does Firefox.