Microsoft is preparing to detail its next major version of Windows. We had been expecting the company to hold a press event later this month, and now it’s official. Microsoft will hold a "Windows event" in San Francisco on September 30th. The software maker started emailing out invites to the event today, and Joe Belfiore and Terry Myerson will be leading a discussion around the future of Windows. The event will focus on enterprise and power users of Windows.

Windows Technical Preview expected soon

Microsoft is expected to deliver a "Windows Technical Preview" at the event or soon after so that developers and enterprise customers can evaluate a number of changes the company is making. Screenshots and videos of the Windows Technical Preview have leaked over the past week, revealing the addition of a new Start menu, a virtual desktops feature, and a Notification Center. Microsoft also appears to be tweaking its desktop user interface to improve and flatten the traditional icons, alongside some taskbar changes for future Cortana integration and virtual desktops.

Additional changes are expected to be pushed regularly to Windows Technical Preview users until the operating system is complete and ready for release next year. We understand Microsoft is planning more UI changes to the desktop, and a number of those improvements aren’t ready for the preview just yet. We’ll be live from San Francisco on September 30th, so stay tuned for much more information about the future of Windows.