Join us in celebrating the bold, curious, exhilarating, groundbreaking, unpredictable and unforgettable things you've made over the past 50 years. From CD-roms to a million games of Minesweeper, we've been on a journey together - here’s to dreaming big, breaking barriers, and making change.

This theme changes the look and feel of your browser and the new tab page to make browsing a celebratory experience. Learn more about our 50th anniversary celebrations at aka.ms/unlock50