Computerworld now projects that Windows XP will still be running between 19.4% and 20.6% of the world's personal computers at the end of 2014.
Another analytics company, Ireland's StatCounter, had different numbers for Windows. StatCounter's figures are often at odds with those from Net Applications because they measure with dissimilar methodologies: StatCounter tallies "usage share" by counting page views to show how active users of each OS are on the Web, while Net Applications estimates "user share" by tallying unique visitors, which more closely resembles user base than does StatCounter's data.
StatCounter pegged June's Windows 8 and 8.1 usage share at 14.3%, Windows 7's at 55%, XP's at 16.3% and Vista's at 3.4%.
In one comparison, however, StatCounter's data was even more depressing for Redmond than Net Applications': In the 20th month after Vista's launch, StatCounter pegged Vista's usage share at 17.1%, significantly more than Windows 8's share of 14.3% at the same post-launch point.
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