Windows XP: The global market share as of April 2012 is 46%, The windows is available in following versions, the latest service pack (SP) is SP3. This product has reached end of Microsoft support but still it is very popular. Windows XP is successor of Windows 98. Initial Windows XP had failed due to Virus and Performance issue but after releases of Service Pack 2 and Service Pack 3 it become stable and most popular. In Windows XP, the name XP is taken from word 'Windows Experience'.
Please see below detailed market share of desktop operating system.
|Desktop Operating System Market Share|