Windows 8 is an operating system developed by Microsoft, released in 2012. It introduced a new user interface based on the Metro design language, which was optimized for touchscreens. While it brought some improvements in performance and security, it received mixed reviews due to its significant departure from the traditional Windows interface, particularly the removal of the Start menu. Some users appreciated the new features and design, while others found it challenging to adapt to the changes. Overall, whether Windows 8 is considered "good" can depend on individual preferences and needs.