Microsoft has been fined by the European Commission for failing to offer a choice of rival internet browsers.
The software giant had promised to make a choice of browsers available to its Windows users in Europe following an anti-trust battle in 2009.
When Windows 7 arrived back in 2011, an estimated 15 million users did not see the so-called browser choice, and the Commission has called the decision to ignore the introduction of different browsers a “very serious infringement” of its commitment.
In a statement, Microsoft said it took full responsibility for the “technical error” that caused the lapse.
“We provided the Commission with a complete and candid assessment of the situation, and we have taken steps to strengthen our software development and other processes to help avoid this mistake – or anything similar – in the future,” it said.
The £484m fine will serve as a warning to other technology firms involved in European anti-trust disputes.