The European Union Competition Commissioner Joaquin Almunia said today that they may press formal charges against Microsoft over anti-competitive behaviors related to web browser choice. As part of the 2009 settlement that Microsoft made with the European Union, Windows users were supposed to be given a clear choice between Internet Explorer and competing products. Microsoft complied up until the release of Windows 7 Service Pack 1, which did not have the browser choice screen. Microsoft said that this happened because of a “technical error.” Unfortunately this could cost Microsoft up to $7.4 billion, which is around 10% of their revenues from last year. A bit steep, eh Europe?