Microsoft is now offering a $250,000 reward to help track down the people behind the notorious Rustock botnet.

The fourth Tuesday of the month is a lesser known Patch Tuesday in which non-security updates are released. But this month Microsoft added in an extra Malicious Software Removal Tool.

Microsoft Corp. took its fight to overturn a $290 million patent infringement judgment to the Supreme Court Monday.

The record number of security fixes is the result of a single security bulletin that addresses 30 Windows kernel flaws. Microsoft on Tuesday issued its April security patch, setting a new record for the number of …

Microsoft has released the 14.1 update for Office 2011 for Mac. The update includes security fixes, bug fixes, and other changes and improvements for Excel, PowerPoint, Outlook, and Word.

Microsoft is rolling out its monthly security patch tomorrow (April 12), a crop of software updates that will fix 64 vulnerabilities.

Microsoft’s record-setting security update next week may patch a large number of vulnerabilities in the Windows kernel, researchers said today.

Microsoft and Google are teaming up to sue Geotag, which has sued about 400 companies for violating a patent that it acquired a couple years ago.

Expo Notes: A look back at the 2011 show Macworld – Jan 30  Editor’s note: Macworld.com and Macworld magazine are run by Mac Publishing, which does not run the Macworld trade show. The company that runs the Macworld trade show is IDG World Expo, a separate company that shares the Macworld brand name with Mac …  [...]

Microsoft says its Dynamics CRM Online software is now available in 40 markets around the world, bringing it in closer competition with Salesforce.