Windows 8 build 8400

Windows 8 build 8400 is the official Release Preview and Release Candidate build of Windows 8, which was officially released to the general public on 31 May 2012.https://news.microsoft.com/2012/05/31/microsoft-announces-availability-of-windows-8-release-preview/Sinofsky, Steven. Delivering the Windows 8 Release Preview, Building Windows 8. 31 May 2012. Archived from the original on 5 July 2012. The Simplified Chinese language variant was leaked across different Chinese forums two days ahead of the official debut.Warren, Tom. Windows 8 Release Preview leaks out ahead of official debut, The Verge. 29 May 2012.
The ARMv7 compile of this build was showcased on a Channel 9 blog post titled Developing for Windows on ARM,Zander, Jason. Developing for Windows on ARM, Channel 9 Blog. 12 June 2012. and was distributed to partners engaging in the Ecosystem Engineering Access Program (EEAP).WHCK WOA Driver momery test fail, Microsoft Visual Studio. 30 July 2012. Its components were additionally released in the form of a set of Repair Content Packages,https://app.prismdrive.com/drive/s/eYudoXLASPqH04HkZdgHAgDPj0rYyT which are used by DISM /Cleanup-Image /RestoreHealth to repair an existing Windows installation.xpduyson. [Tutorial Fix lỗi Windows bằng dòng lệnh xịn hơn cả sfc /scannow !], WindowsVN. 10 August 2013. Archived from the original on 5 January 2014.
==Editions and keys==
Edition / SKU Name 	Key
Core 	2H7NK-3VJJY-HHY3Y-WM3T8-JFCRY
Professional 	GCNRF-BHBCM-W9YWM-VWQP6-TJBWR
ProfessionalWMC (edition upgrade only)	MBFBV-W3DP2-2MVKN-PJCQD-KKTF7
==New features and changes==
===User interface===
Only minor differences can be observed across the user interface when compared against the previous build: the bug preventing task previews from displaying within the Windows shell has been fixed, and the Desktop Window Manager client area in Windows Explorer no longer extends to the navigation bar when the Ribbon user interface is not utilized.
Minor visual changes to existing assets have also been introduced: the wallpaper first introduced in build 8375 has had its color temperature and saturation slightly adjusted, and the Windows Update icon has been updated to utilize its final design.
===Adobe Flash Player===
This build adds the Adobe Flash Player Control Panel applet to the x86 and x64 compiles of the operting system. The corresponding ActiveX control for use in Internet Explorer, however, did not follow until build 8438. Due to Flash Player being only avaiable in x86 at this point, the x64 compile uses the x86 applet over WoW64. Respectively, it is not present in the ARM32 compile due to the lack of a native ARM32 port of the Adobe Flash framework.
==Bugs and quirks==
=== Intel Sandy Bridge CPU deadlocks ===
This build suffers from a clock timing-related hardware abstraction layer (HAL) bug that causes the operating system to gradually deadlock when it is run on Intel processors based on the Sandy Bridge microarchitecture while the system is installed on a solid-state drive.Rivera, Rafael. More info about the Windows 8 Release Preview freezing issue, Within Windows. 26 June 2012.
The KB2727113 update resolves the bug by replacing the HAL with a fixed version from the following GDR/LDR compiles:Bott, Ed. Surprise update fixes 'random hang' problem in Windows 8 Release Preview, ZDnet. 10 July 2012.
*6.2.8400.114 (winmain_win8rc_gdr.120625-1503) (GDR)
*6.2.8400.4219 (winmain_win8rc_ldr.120624-1501) (LDR)
===Aero Lite transparency effects===
When using the Windows Basic (Aero Lite) visual style, transparency effects can be enabled through the use of a bug in the Personalization Control Panel. To do so: 
#Right-click the desktop and open up Personalization, then click on the "Window Color" link given at the bottom of the window. Keep the window open.
#Open a separate personalization window and apply the Windows Basic theme.
#Switch to the other personalization window that was opened at the start, uncheck and re-check the "Enable transparency" option and then click on the "Save changes" button. This will cause transparency effects to take effect.
== Gallery ==
=== Out-of-box experience ===
8400-OOBEPersonalize.png|Personalization
8400-OOBESettings.png|Express settings
8400-OOBEMSAcc.png|Microsoft account page
8400-OOBEAccType.png|Local or Microsoft account page
8400-OOBELocalAcc.png|Local account page
8400-Finalizing.png|Finalizing settings
8400-GettingReady.png|First logon animation
=== Interface ===
File:84008441boot.png|Boot screen
File:8400-SignIn.png|Login screen
File:8400-Start.png|Start screen
File:Windows8-6.2.8400-Charms.png|Charms bar
File:Windows8-6.2.8400-Basic.png|Windows Basic (Aero Lite) visual style
File:Windows8-6.2.8400-Basic-withTransparency.png|Windows Basic (Aero Lite) visual style with transparency effects by means of a bug in the Personalization Control Panel
=== ARM32 version ===
WinRT8400.png|alt=ARM32 version|Snapshot from "Developing for Windows on ARM"
Windows8-6.2.8400.0-CoreARM-Desktop.png|Desktop
Windows RT-6.2.8400.0-System.png|System Properties
Windows RT-6.2.8400.0-Winver.png|winver
Windows8-6.2.8400.0-CoreARM-WinverCMD.png|winver and Command Prompt
Windows RT-6.2.8400.0-IE.png|Internet Explorer 10
Windows RT-6.2.8400.0-Device Manager.png|Device Manager
=== Simplified Chinese variant (CoreCountrySpecific) ===
Windows8-6.2.8400-SimplifiedChinese-Setup.png|Setup
Windows8-6.2.8400-SimplifiedChinese-OOBE.png|OOBE
Windows8-6.2.8400-SimplifiedChinese-Lock.png|Lock screen
Windows8-6.2.8400-SimplifiedChinese-Start.png|Start screen
Windows8-6.2.8400-SimplifiedChinese-Desk.png|Desktop
Windows8-6.2.8400-SimplifiedChinese-Charms.png|Charms bar
Windows8-6.2.8400-SimplifiedChinese-Explorer.png|File Explorer
Windows8-6.2.8400-SimplifiedChinese-IE.png|Internet Explorer
Windows8-6.2.8400-SimplifiedChinese-About.png|winver
Windows8-6.2.8400-SimplifiedChinese-System.png|System Properties
=== Spanish variant ===
8400es-ES-postOOBE.png|First logon animation
8400es-ES-lockscreen.png|Lock screen
8400es-ES-startscreen.png|Start screen
8400es-ES-desktop.png|Desktop
8400es-ES-winver.png|winver
==References==
Category:Windows 8 builds