Windows 9

Windows 9 is an operating system developed by Microsoft as part of the Windows X.XX family. It looks similar to Windows 10 builds at the time.

Updates

 * Minor Update 1: Released on June 29, 2014. Update had
 * Multiple bug fixes
 * Improved performance
 * Major Update 1: Released on August 12, 2014. Update had
 * Cortana was added
 * Action Center was renamed Security and Maintenance
 * Minor Update 2: Released on March 10, 2015. Update had
 * Multiple bug fixes
 * Improved speed and performance
 * Minor Update 3: Released on September 30, 2015. Update had
 * Bug fixes
 * Major Update 2: Released on April 8, 2016. Update had
 * Some new features included on Windows 10 is in this OS (But not Edge)
 * Minor Update 4: Released on October 20, 2016. Update had
 * Bug fixes
 * Major Update 3: Released on May 6, 2017. Update had
 * Many new features.
 * Attack Update: Released on May 15, 2017. Update had
 * WannaCry ransomware attack killed.
 * Minor Update 5: Released on January 8, 2018. Update had
 * Some bug fixes
 * Major May: Released May 6, 2019. Update included
 * Loads of new features.
 * Edge update: Released January 15, 2020. Update included
 * New Microsoft Edge, but Internet Explorer continues to become the browser in conjunction with Edge.

Differences from Windows 10

 * Internet Explorer is the default browser for Windows 9
 * Settings from Windows 8.1 for Windows 9.
 * There is a circle in the current Windows version, just like in Windows Vista and Windows 7. And surprising, it's the same.
 * The OneDrive built-in sync client is included
 * Cortana is not included (It was later available in Major Update 1)
 * No dark or light mode.
 * Some sounds, like background, still had 8.1 sounds.
 * Includes Windows Help and Support.
 * Still includes Windows Media Center.