In the same period, Windows 7 saw its use slide from 47.49 percent to 47.31 percent, while Windows 8.x use slipped from 10.58 percent to 10.48 percent.
There are all sorts of reasons Netmarketshare's data could be erroneous, but even if XP's market share isn't growing it is still extraordinary that it it remains installed on almost one in three PCs. Anecdotally, a great many XP machines reside in developing nations: your correspondent certainly saw a fair bit of XP in places like Cambodia, Thailand and Vietnam last year.Source: The Register