Ars Technica posted a story that the European Commission is investigating Microsoft's failure to offer European users of 28 million Windows 7 PCs a choice of Web browsers, which Microsoft is required to do under a December 2009 antitrust agreement.

Microsoft has issued a statement admitting the mistake, saying, "Due to a technical error, we missed delivering the BCS software to PCs that came with the service pack 1 update to Windows 7." Microsoft began looking into the problem in July of this year, after the European Commission notified the company of reports that some users weren't getting the browser choice screen. Microsoft is already rolling out the browser choice screen to affected users through its Windows update process and says it expects to "substantially complete distribution of the BCS software to the PCs we initially missed by the end of the week."

  Windows 7 SP1 "technical error" violated Microsoft's antitrust deal