The Windows 7 service pack 1, rolled out between mid-2011 and mid-2012, failed to offer consumers a choice of browser, leading to the EU investigation that resulted in today's fine.
Microsoft said the failure was the result of a technical error and that procedures have since been tightened.
In what was seen as an acknowledgement of the severity of the mistake, the board cut the bonus of chief executive Steve Ballmer last year, according to company's annual reports.
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The ruling Communist Party has formally elevated President Xi Jinping's status for the leader to tighten his grip over the country.
Police are appealing for witnesses after a Pagani Zonda driver's early morning crash near Chichester.
Two women accused of murdering Kim Jong-nam - the half-brother ofKim Jong-un - have revisited the scene of the attack.