Should you upgrade your computer? Here's the definitive guide.Īs promised in last month's PC Notes column, I'm going to devote this PC Musician to Microsoft's new operating system, Windows XP. Windows XP is probably the most important PC operating system upgrade since Windows 95, but as always, its new features come at a cost. With new soft-sculpted windows and buttons, or your choice of skins, more helpful menu options, and many new user options, the new Windows XP user interface is more attractive and easier to use than ever before.