Windows 7 was launched in October 2009, but since then Microsoft has had to deal with the fact that that a lot of PCs around the world still use the much older Windows XP OS. Today, StatCounter's website shows that, for the previous month of June 2012, Windows 7 is now finally installed on the majority of PCs worldwide, with 50.2 percent. Windows XP, launched nearly 11 years ago, is now inside 29.91 percent of PCs, according to StatCounter.
However, Net Applications, which Microsoft actually prefers to StatCounter when it comes to generating statistics on web browser use, shows on their website that Windows XP is still on top with 43.61 percent of PCs worldwide in June. Windows 7 is shown to be in second but is closing in on Windows XP with 41.59 percent, according to Net Applications.
Microsoft is concerned that too many PCs are still working with Windows XP, in part because Microsoft will end its official support for the OS in April 2014. The company has issued a number of warnings to businesses in the past year to upgrade as soon as possible, including one in May, and not wait for the official launch of Windows 8 later this year.