Windows 8 build 8220

Windows 8 build 8220 is a Consumer Preview escrow build of Windows 8, distributed to partners enrolled into the Microsoft Technology Adoption Program (TAP) on 2 February 2012. The build was shared online on 6 July 2024.
A subset of screenshots showing off the build's English (United States) and Simplified Chinese localizations were first uploaded by members of Chinese forum PCBeta two days later,aiby et al. [分享8220 新的开始~~有图 (in Chinese)], PCBeta Forums. 4 February 2012. and another subset of images depicting the build were later released on 6 February 2012 by Canouna, author of Windows beta website Winunleaked.tk.Canouna. Windows 8 Beta Candidate Build 8220, Winunleaked.tk. 6 February 2012. A video of its ARM compile's boot process was subsequently recorded and uploaded to video sharing site Youku on or around 8 February 2012.Windows8 build 8220开机视频 (in Chinese), Youku. Additional references to the build's ISO image filenames from an employee of an unspecified company participating in the Microsoft Technology Adoption Program were later referenced in a question about distinguishing both the official Consumer Preview build and this build on the StackExchange Superuser forums on 5 March 2012.Landy. The client and server editions of Windows 8, StackExchange Superuser. 5 March 2012.
The build includes a subset of minor fit-and-finish changes that continue to reflect the intended vision for the Metro design language introduced as part of the operating system, and is notably one of the last few builds to incorporate the older Windows flag logo introduced in 2001 (as part of Windows XP's release), along with builds 8195 and 8277, as the official Consumer Preview build would eventually introduce the 2012-2021 flag design.
As the build comes from a public release branch intended for the official Consumer Preview release, several anti-leak mechanisms have been relaxed.
== New features and changes ==
=== User interface ===
==== Metro shell ====
The PC settings pinned application tile has been removed from the Start screen and the apps list; the only way to access the application at the time of compilation is through the Settings charm.
=== Boot Graphics Library (BGFX) ===
The Boot Graphics Library has been updated to accommodate for legacy BIOS machines utilizing a widescreen monitor configuration; the boot screen, system crash screen and the second stage of setup therefore utilize 16:9 aspect ratio variants of the logo bitmap and Segoe Boot font face, with resources designated under the N moniker.
=== Secure Boot Policy ===
This build uses a preliminary version of the Secure Boot Policy, although the on-disk structure is identical to later builds: 
*Signature validation is different: the policy must have a hash in or be signed by a certificate in the UEFI Key Exchange Key signature database.
*The CanUpdate element is used here; the code using it was removed later but the element remained in the file format. A path to an updated policy can either be set in a UEFI variable; alternatively, for BitLocker where the VMK is sealed by the TPM, an updated policy is read from osdevice:\LatestPolicy.p7b. This policy must have a valid signature.
**The updated policy must have a PolicyPublisher equal to one of the CanUpdate GUIDs in the loaded policy; also, the policy version must be greater than the loaded policy's version. If all conditions pass, the updated policy is installed to UEFI non-volatile storage and used as the active policy.
*BCD rules are identical to later builds; that is, BCD elements can be overridden by the policy to either be forcibly ignored, or for deletion to be disallowed from the running OS, or for the element value to be locked to a value or one of several values listed in the policy.
*Registry rules are not used for low-level cryptographic settings as in later builds but instead are used to override registry values anywhere in HKLM\SYSTEM. The operating system loader winload.e* and NT kernel both have code implementing this functionality; the former uses the policy to override the registry values it reads from that hive.
*Option flag bits are completely different from later builds; only 3 bits are used, all by the operating system loader; bit 0 disables the Edit Options menu, bit 1 disables the Advanced Options menu, bit 2 is unknown but related to the Advanced Options menu.
=== Miscellaneous ===
* The shutdown sound no longer plays when the operating system is being shutdown by the user.
== Bugs and quirks ==
As this build was compiled relatively late into preparations for the upcoming Consumer Preview release, some stability, performance and usability issues are also present in this build.
=== Filesystem mounting support ===
* The shell may attempt to invoke a Windows Explorer window that navigates to an unoccupied drive letter before an ISO image is able to finish mounting, in turn displaying an invalid path error. The ISO image will still have mounted normally, and can be accessed through ordinary means. Virtual hard disk (VHD) images are confirmed to not be impacted by this bug.
=== Desktop Window Manager ===
* Attempting to use the Magnifier accessibility tool will create graphical artifacts across windows composited by the Desktop Window Manager.
=== Recovery ===
* The System Reset tool does not function as the respective modal prompt for removing user data does not display properly.
=== User interface ===
==== Internet Explorer ====
* Elements of the new Internet Explorer user interface may fail to adequately respond to user inputs, appearing to "hang" at times.
==== Control Panel ====
* Adding a new language (such as Japanese) will cause the Control Panel to hang. The only way to fix this is by restarting the Windows Explorer shell.
* Devices are not correctly detected in the PC settings application - as a result, its respective tab will constantly redraw itself when populating devices. Attempting to manually add a device through the Devices tab will consequentially crash the application.
===Compatibility===
To install or run this build in VMware Workstation, the hardware compatibility must be set to version 9.x or 8.x; otherwise, a bugcheck will occur.
== Gallery ==
Windows8-6.2.8195.0-BootScreenLegacyBIOS.png|Boot screen (Legacy BIOS)
Windows8-6.2.8277-Boot-UEFI-1024x768.png|Boot screen (UEFI)
=== English version ===
==== Windows Setup ====
Windows8-6.2.8220.0-SetupAutorun.png|Autorun
Windows8-6.2.8220.0-MoSetup.png|Modernized setup UI
Windows8-6.2.8220.0-MoSetup-UpgradeConf.png|Ditto, upgrade setup confirmation
Windows8-6.2.8220.0-MoSetup-InstallProgress.png|Ditto, image deployment
==== Interface ====
Windows8-6.2.8220.0-LockScreen.png|Lock screen
Windows8-6.2.8220.0-LogonScreen.png|Logon screen
Windows8-6.2.8220.0-StartScreen.png|Start screen
Windows8-6.2.8220.0-StartScreen-MiniView.png|Ditto, minimized view
Windows8-6.2.8220.0-StartScreen-AppsList.png|Ditto, applications list
Windows8-6.2.8220.0-WindowsExplorer.png|Windows Explorer
Windows8-6.2.8220.0-PCSettings.png|PC settings
Windows8-6.2.8220.0-AppSnap.png|Application snapping
Windows8-6.2.8220.0-AppSnap-Alt.png|Ditto.
Windows8-6.2.8220.0-StartButton-HotCorner.png|Start button hot corner
Windows8-6.2.8220.0-CharmsBar.png|Charms bar
=== Simplified Chinese version (unleaked) ===
8220ClientSuperButton2.png|Unfocused charms bar
8220ClientSuperButton1.png|Charms bar
Windows8-6.2.8220.0-SettingsStartPatterns zh-CN.png|PC settings; start screen patterns subpage
=== Images uploaded prior to publication ===
==== English version ====
===== PCBeta images =====
W8 8220-Desktop.jpeg|Desktop and charms bar
Windows8-6.2.8220-Info.jpg|System Information and System Properties
Windows8-6.2.8220-RecoveryCPL.png|Recovery options
W8 8220-Settings charms.jpeg|Settings charm
W8 8220-Wireless.jpeg|Wireless
W8 8220-Start Screen.jpeg|Start screen
W8 8220-All apps view.jpeg|Start screen - All apps view
W8 8220-Settings search.jpeg|Settings search
W8 8220-Store.jpeg|Windows Store
Windows8-6.2.8220-PCsettings-EN.png|PC settings
W8 8220-Internet Explorer.jpeg|Internet Explorer with Alipay opened
W8 8220-Typing.jpeg|Internet Explorer with PCBeta BBS opened
W8 8220-Desktop with Internet Explorer.jpeg|Ditto
W8 8220-About Internet Explorer.jpeg|About Internet Explorer
W8 8220-Windows PowerShell 1.jpeg|Windows PowerShell
W8 8220-Windows PowerShell 2.jpeg|ls and dir cmdlets
W8 8220-Windows Defender.jpeg|Windows Defender
W8 8220-Add Languages.jpeg|Add Languages
W8 8220-Windows To Go Startup Options.png|Windows To Go Startup Options
===== WinUnleaked.tk images =====
W8 8220-Desktop and Settings side by side.png|Desktop and Settings side by side
W8 8220-Desktop and Immersive Internet Explorer side by side.png|Desktop and Immersive Internet Explorer side by side
Windows8-6.2.8220-Charms-EN.png|Charms bar
Windows8-6.2.8220-StartScreen.png|Start screen
Windows8-6.2.8220-Desktop+About.jpg|winver
Windows8-6.2.8220-SystemProperties+Personalization+About.jpg|Demo
==References==
Category:Windows 8 builds