Windows XP Starter Edition is a lower-cost version of Windows XP
It is similar to Windows XP Home, but is limited to low-end hardware, can only run 3 programs at a time, and has some other features either removed or disabled by default.
The Starter Edition includes some special features for certain markets where consumers may not be computer literate. Not found in the Home Edition, these include localised help features for those who may not speak English, a country-specific computer wallpaper and screensavers, and other default settings designed for easier use than typical Windows XP installations.
In addition, the Starter Edition also has some unique limitations to prevent it from displacing more expensive versions of Windows XP.
Only three applications can be run at once on the Starter Edition, and each application may open a maximum of three windows. The maximum screen resolution is 1024×768, and there is no support for workgroup networking or domains.
In addition, the Starter Edition is licensed only for low-end processors like Intel's Celeron or AMD's Duron and Sempron. There is also a 512 MB limit on main memory and a 120 GB disk size limit.
Microsoft has not made it clear, however, if this is for total disk space, per partition, or per disk. There are also fewer options for customizing the themes, desktop, and taskbar.