For years now Microsoft has been dancing lightly around the European Union and its anti-trust regulations, and recently the two entities have been banging heads again. The EU has started an investigation into allegations that Microsoft does not offer the 'browser choice screen' popup that MS supposedly promised to add into new version of Windows.

In 2009 the EU urged Microsoft to change their policy on browsers, concluding that Microsoft forces users to use Internet Explorer without informing them of the other choices they have. Microsoft agreed to add the BCS (Browser Choice Screen) to future copies of Windows. Recently, according to Microsoft, 10% of Windows copies have not received this message due to a problem with the Service Pack 1 addition to Windows 7.

Although they immediately started to rectify this, Microsoft can stand to be fined heftly if the EU finds them to be in violation of the anti-trust laws governing Europe.