Windows 7 fastest selling OS

Microsoft has said it has sold 90 million copies of Windows 7 since it hit shelves, making the software the fastest selling OS in history.

Chief financial officer Peter Klein, speaking at the Morgan Stanley Technology conference in San Francisco, made the claim.

“We’ve now sold 90 million copies, which is just terrific momentum,” he said. “One of the things that’s really been a big part of the success of Windows 7 is the great collaboration with our hardware partners, the innovation they’re bringing to the form factors,” said Klein.

“Heading into 2010 and 2011, we’re starting to see incredible interest from our enterprise customers to start deployments of Windows 7. The interest has been very high, and we’re now having conversations with the majority of our enterprise customers who are making plans to deploy Windows 7,” said Klein.

Klein said business demand for Windows 7 is expected to increase as companies look to upgrade.