The European Union has officially lifted its requirement on Microsoft to offer Windows users their choice of Web browsers.

In 2009, after an ongoing debate with the European Union over whether Microsoft was unfairly competing in the browser market by bundling Internet Explorer with Windows and not offering any other option, the parties agreed to what became known as a "browser ballot." Under the terms of the deal, Microsoft would give European Union consumers the option to choose which browser they wanted to use, rather than simply bundle Internet Explorer in Windows and force them to go out on the Web to use competitors, like Mozilla's Firefox or Google Chrome.

"This website was created by Microsoft in accordance with a decision issued by the European Commission in December 2009," Microsoft wrote on its EU Browser Ballot site. "The obligations imposed by the decision have now expired and Microsoft will no longer maintain this website. Microsoft encourages customers who want more information about web browsers or want to download another browser to do so by visiting the websites of web browser vendors directly."

Microsoft did not immediately respond to a request for comment.

When Microsoft inked the deal, the European Union argued that Microsoft's grip on the browser market was too tight, pointing to the software's 70 percent market share. The move was designed to increase competition. It proved to dismantle Internet Explorer, which now has anywhere from 18 percent to 25 percent market share in Europe, depending on the data-analysis tool used.

What's worse for Microsoft, archrival Google has watched its market share soar in the browser space. Google's Chrome now has approximately 50 percent market share in Europe, according to measurement firm StatCounter.