Microsoft also hinted that supplies would remain tight, and to expect future shortages.
A retail copy of Office 2013 is permanently tied to the first PC on which it's installed, preventing customers from deleting the suite from one machine they own and installing it on another.
Microsoft is reminding customers that Windows 7's first edition, which shipped more than three years ago, will be dropped from support in early April.
The preliminary Metro browser has reached the source code repository that feeds into Mozilla's 'Nightly' build channel
The support period is less than half the usual 10 years Microsoft allots its software products
Six years after its long-delayed but well-publicized release, Windows Vista now accounts for less than 6% of all Windows machines, according to Net Applications.
Microsoft will issue 12 security updates next week, including two for Internet Explorer, that will patch a near-record 57 vulnerabilities in the browser, Windows, Office and the enterprise-critical Exchange Server email software.
Microsoft will open five new retail stores by summer, including one it's transmuting from a "pop-up" outlet created last year to drive holiday sales.
Subscribe to software? Why would I do that? Microsoft's sweetened the deal with more rights and some extra benefits.
It's the last day you can upgrade to Windows 8 Pro for $39.99.
Microsoft's new pay-as-you-go Office 365 subscription plans differ from traditional buy-once software in one important aspect: When customers stop paying, the applications stop working.
The latest version of Adobe's Flash Player is the only plug-in that will be spared
Google Monday announced it would again host its Pwnium hacking contest at a March security conference, but boosted the maximum amount it will pay to $3.14 million and changed the target to the browser-based Chrome OS.
Java's new security settings, designed to block "drive-by" browser attacks, can be bypassed by hackers, a researcher announced Sunday.
Microsoft will reap a windfall as soon as it introduces its Office suite for iOS and Android, but that window of opportunity is closing, says an analyst.