New York - Microsoft is following through on a promise to update its Windows 8 operating system on a regular basis to respond to consumers' complaints and other feedback.

Just months after the release of Windows 8.1, Microsoft is preparing changes to make it easier for people to use Windows with traditional keyboard and mouse controls. Among other things, Microsoft will add search, power and settings buttons to the Start page, so people don't have to figure out how to pull those functions from the right side of their screens. The update also promises easier ways to close apps.

Microsoft Corp. outlined some new features at a February conference in Barcelona, Spain, and likely will offer more details Wednesday as the company opens its Build software developers conference in San Francisco.

The new, yet-unnamed update is expected soon. It follows the October debut of Windows 8.1, which came just a year after the release of Windows 8. The pattern contrasts with Microsoft's past habit of waiting years to release major updates.

Microsoft is also updating its Windows Phone system to work better in corporate environments. The company will add VPN support, for instance, to allow phones to connect with corporate networks securely. There also will be features that consumers in fast-growing emerging markets desire, including the ability for phones to have two SIM cards so people can switch carrier plans easily for the best deals.

The company hasn't announced pricing or specific availability for either update, but both are likely to be free downloads, based on past practice. They could be available as early as this month and will be among the first major software releases since Satya Nadella became Microsoft's CEO in February. It follows Nadella's unveiling last week of Word, Excel and Power Point apps for Apple's iPad.

Microsoft also may use the Build conference to update software developers on the company's plans to integrate the Windows Phone 8 system for smartphones, the Windows 8.1 system for tablets, laptops and desktops and the Xbox system for its game console. The company has said it is working to have its various systems share more of the underlying code, while retaining separate interfaces adapted to the specific devices. The integration will make it easier for developers to adapt apps for the various devices.

Microsoft, which is based in Redmond, Wash., saw lackluster demand when Windows 8 and Windows Phone 8 came out in October 2012.