Microsoft: Windows XP market share at 21 percent; goal of 13 percent by April 8 September 19, 2013 by admin Tweet During today’s financial analyst meeting, Microsoft said that Windows XP currently has 21 percent of the worldwide OS market share, with the goal of cutting that down to below 13 percent by April 8. Read more… Neowin Related Posts:Xiaomi beats Apple to become the world's…Windows 11 reaches 19% market share on SteamWindows 11 struggles to reach 20% share according to…Statcounter: Windows 11 market share jumps to 27.83%Windows 11's market share on Steam is down to 37%