The browser's latest update features reduced memory consumption designed to boost browser performance.
American shoppers are still eyeing tablets, but two-in-one devices may satisfy some.
The developer event moves up a couple months to April 2014.
One out of ten laptops shipped this year support touch input, says NPD DisplaySearch
But you can still find boxed copies if you shop around.
According to figures from Net Applications, Windows 8's uptake stalled in November; Windows 7 continued to gain ground.
Microsoft delivered both Office 2010 SP1 and Office 2007 SP1 about 13 months after their respective original editions’ debut. Office 2013 SP1 is expected in February.
What Microsoft puts in its upcoming touch-based Office suite will be a huge test for the company, analysts said.
Long before Apple started selling its iPad Air, more than double the number of consumers asked for price quotes on their older tablets than last year, a pair of buyback companies said.
Microsoft continues to try to scare Windows XP users into upgrading, saying the chance that malware will infect their PCs could jump by two-thirds.
OS X Mavericks could end up on more than 90 percent of Macs, according to statistics from Web analytics firm Net Applications.
Microsoft's new update for Windows Phone 8 added support for larger phones and higher-resolution screens, a move analysts hoped would soon put the operating system onto small-sized tablets, a market Microsoft and its hardware partners have largely ignored.
Microsoft has begun selling gift cards good for purchases on its digital content market, taking a page out of Apple's iTunes playbook.
Microsoft will probably report better than expected Windows revenue when it issues its third-quarter earnings numbers this month, based on PC shipment estimates by research firm IDC.
The security researcher who was awarded $100,000 by Microsoft said he spent about two weeks pondering, then demonstrating a new way to circumvent Windows' defensive technologies.