Windows XP's market share among desktop operating systems rose for the second month in a row in February, according to NetMarketShare.
The 13-year-old operating system's share grew by just below 0.3 percent last month, to 29.53 percent. This puts it more than 0.5 percent up from where it was in December 2013.
While the rise itself could be put down to data recording anomalies or global trends seeing more XP machines connected to the internet, the fact that XP has not seen a drop since November 2013 will be a worry for Microsoft. The firm will be ending support for XP on 8 April, and has been pushing consumers and businesses to upgrade to Windows 8 and 8.1 to avoid numerous security issues the end of support for XP will cause.
Meanwhile, Windows 8 and 8.1 grew to 10.68 percent market share, a figure which is only growing slightly every month. Windows 8.1 alone now has 4.3 percent of the market, with a significant operating system update due later this year.
Windows 7 still holds almost half of the operating system market, at 47.31 percent, as Microsoft's 2009 operating system keeps the balance of user interface familiarity and software stability. Windows Vista, released in 2006, continued its decline, falling from 3.3 percent to 3.1 percent.
The latest version of Apple's Mac OS X operating system, 10.9 Mavericks, also saw growth as users update to the software and buy new devices with it pre-installed. It now holds 3.48 percent of the market, overtaking Vista in January.
Last week, Apple's operating system came under fire after it emerged that a coding mistake had left it vulnerable to cyber attacks, as the operating system made no distinction between secure sockets layer (SSL) connections and compromised ones.
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