Windows 11 has officially surpassed 1 billion users, achieving this milestone during the recent holiday quarter. This marks a faster adoption rate than Windows 10, which took nearly six years to reach the same number. Microsoft CEO Satya Nadella reported a year-over-year increase of over 45 percent in Windows 11 users, partly due to the end of support for Windows 10. Windows 11 reached 1 billion users in 1,576 days, compared to 1,706 days for Windows 10.