Windows 10 build 9879.0

Windows 10 build 9879 is the third officially released Technical Preview build of the original release of Windows 10. It is the last build to be released to Windows Insiders in 2014 officially by Microsoft, released on 12 November 2014 for Fast ring users and on 25 November 2014 for Slow ring users.

New features and changes

 * Battery icon is now thinner and flatter in appearance.
 * Support Center was renamed to Security and Maintenance.
 * Feedback button (in the form of a smiley face) has been added to Internet Explorer 11.
 * OneDrive received improvements.

Window thumbnail color error
If window auto-colorization is enabled, the window thumbnail borders on the taskbar do not change color even after the wallpaper changes. This issue can be remedied by manually changing the window color through the Control Panel.