Windows 7's market share is expected to pass XP in the third quarter 2012, just when Windows 8 is expected to arrive.



From ComputerWorld:

Windows XP may be the last Microsoft operating system to hold a majority share, according to data from Web metrics company Net Applications.

At its peak, Windows XP powered more than eight out of every 10 computers worldwide. In November 2007, the earliest month for which Computerworld has Net Applications' data, XP accounted for 83.6% of all operating systems.

  Windows forecast shows XP's one-of-a-kind dominance