Windows 10 build 9879.0

Windows 10 build 9879 is the third officially released Technical Preview build of the original release of Windows 10. This build includes some improvements to OneDrive. It is the last build to be released to Windows Insiders in 2014 officially by Microsoft, distributed on 12 November 2014 for Fast ring users and on 25 November 2014 for Slow ring users. It also added a feedback button (in the form of a smiley face) to Internet Explorer 11.

Window thumbnail color error
Window thumbnails on the taskbar do not change color, but the user can change it after the computer restarts.