The aged OS lost just one-tenth of a percentage point of share, falling to 34.5% of all Windows machines, at least temporarily delaying the mass migrations some expect before next April, when the 12-year-old OS stops receiving security updates.
In August and September, XP shed six percentage points, a record two-month decline.
Last week, Microsoft again beat the XP drum, citing data from its malware cleaning tools to claim that customers who don't dump the OS before it's retired face a 66% increase in attack code infections.
Windows 7, the business-standard replacement for XP, powered an estimated 51.2% of all Windows systems in October, Net Applications said. Meanwhile, Microsoft recently pegged Windows 7's share in the enterprise at a significantly higher 75%.
Windows continued to run the vast majority of personal computers — 90.7% — last month, but Apple's OS X ended October with a 7.7% user share, or about 1 out of every 13 systems worldwide, a new record. Linux finished October flat at 1.6%.
Net Applications measures operating system user share by tracking unique visitors to approximately 40,000 sites that rely on its traffic analytics software.
Windows 8 accounted for more than 10% of all computing devices running a Microsoft OS in October. (Data: Net Applications.)
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