Windows 11 has a market share of 53.7%, while Windows 10 has 42.7%. Approximately 700 million devices are running Windows 11. Microsoft has urged users to upgrade from Windows 10, which officially ended support in October 2025, leaving users without updates or security patches. Users on Windows 10 may need to purchase an extended security package for protection until October 2026. Hardware compatibility issues, particularly with the Trusted Platform Module 2.0 requirement, may prevent some users from upgrading. The 25H2 update for Windows 11 introduced various enhancements but also created new issues. Windows 12's release is uncertain, with expectations for AI advancements, but details are speculative.