Windows 10 build 9879

Windows 10 build 9879 is the third Technical Preview build of the original release of Windows 10. It was released to Windows Insiders in the Fast Ring on 12 November 2014 and to Windows Insiders in the Slow Ring on 25 November 2014.Windows Experience Blog
== Editions and keys ==
Edition / SKU Name 	Key
Core 	334NH-RXG76-64THK-C7CKG-D3VPT
Professional 	NKJFK-GPHP7-G8C3J-P6JXR-HQRJR
ProfessionalWMC (edition upgrade only)	GBFNG-2X3TC-8R27F-RMKYB-JK7QT
Enterprise 	PBHCJ-Q2NYD-2PX34-T2TD6-233PK
== New features and changes ==
*The OOBE received its minor changes.
* Battery icon is now thinner and flatter in appearance.
* Action 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.
*UWP login screen's font now uses Segoe UI unlike build 9860.
*XAML start menu is now displayed correctly.
== Findings ==
=== Hidden features ===
The following hidden features have been found within this build:
* Hidden lock screen - enabled by setting Threshold to 1 under [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\TestHooks] in the registry like in build 9845.
* XAML Start menu - create and set UseExperience to 1 under [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ImmersiveShell\Launcher]
* Search box on the taskbar - enabled by setting EnableSearchBox to 1 under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Search. The search box's font is vgasys.fon at this point in development.
===Hidden apps ===
There are a few hidden apps in this build:
* Windows Default Lock Screen - accessed by running C:\Windows\explorer.exe shell:AppsFolder\Microsoft.WindowsDefaultLockScreen_8wekyb3d8bbwe!LockApp
*Cloud Experience Host - accessed by running C:\Windows\explorer.exe shell:AppsFolder\Microsoft.CloudExperienceHost_8wekyb3d8bbwe!App
*Windows Shell Experience Host - accessed by running start-menu://test/
== Bugs and quirks ==
=== Window thumbnail border 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 or restarting Windows.
==Updates==
*9879.2.fbl_release_currentfr.141107-1950 (KB3016656/3016725)
** Released on 11 November 2014
*9879.3.fbl_release_currentfr.141118-1627 (KB3019269)
** Released on 24 November 2014
*9879.4.fbl_release_currentfr.141120-1731 (KB3018943)
** Released on 25 November 2014
*9879.5.fbl_release_currentfr.141124-1731 (KB3020114)
** Released on 1 December 2014
*9879.6.fbl_release_currentfr.141125-1839 (KB3021937)
** Released on 9 December 2014
*9879.7.fbl_release_currentfr.141202-2315 (KB3022827)
** Released on 9 December 2014 as an additional update to KB3021937
*9879.8.fbl_release_currentfr.141205-1804 (KB3024666/3025096)
** Released on 15 December 2014
==Gallery==
====Setup====
File:Win8boot.png|Boot screen
File:Windows 7 Betas-2017-02-11-17-40-36.png|Setup
File:Windows 10 Build 9879-EULA.png|EULA
File:Windows 10 Build 9879-OOBE.png|OOBE
File:Windows 10 Build 9879-Account creation.png|Account creation
File:Windows 10 Build 9879-OOBE 2.png|Post-OOBE
====Interface====
Windows 7 Betas-2017-02-11-17-56-34.png|Start menu
Windows 10 Build 9879-Action Center.png|Notification Center
9879IE.png|Internet Explorer with Smile Feedback button
6.4.9821-Thumbnail-error.png|Incorrect window thumbnail border color
Windows10-6.4.9879-Debug-winver.png|winver of the debug compile
Windows10-9879-Demo.png|Demo
====Hidden features====
File:9879-XAMLStart.png|XAML start menu
File:9789-2023-07-04-15-06-53.png|Desktop with search box enabled
File:9789-2023-07-04-15-08-40.png|Hidden lock screen
==References==
Category:Windows 10 builds