‎Windows 8 Build 7861.0.fbl_grfx_dev1.101013-1700

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7861.0.fbl_grfx_dev1.101013-1700
Windows 8 的版本
操作系统系列Windows NT 系列
NT 版本Windows NT 6.1
内部版本号7861
修订版本号0
体系结构x64
内部版本实验室fbl_grfx_dev1
编译日期2010 年 10 月 13 日
有效期
时间炸弹2011 年 2 月 5 日 (+115 天)
关于对话框

Windows 8 build 7861 is a build of Windows 8. It was shared on 11 October 2024, along with a concurrent fbl_core1_hyp_dev compile in the Server SKU.

This is the last available build to bear the 6.1 kernel version.

SKU 版本和密钥

SKU 版本 密钥
Home Basic YGFVB-QTFXQ-3H233-PTWTJ-YRYRV
Home Premium RHPQ2-RMFJH-74XYM-BH4JX-XM76F
Professional HYF8J-CVRMY-CM74G-RPHKF-PW487
Ultimate D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV

New features and changes

Interface

The Windows Aero visual style has been changed slightly, now featuring a smaller close button in dialogs that don't have maximize and minimize or help buttons and a modified text glow effect that fills the whole title bar area. However, the previous glow effect is still used for windows that is utilizing/had utilized the Windows Ribbon framework.

Leak prevention

A near-final implementation of the Windows Fingerprinting Service has been added through the addition of a dedicated fingerprinting blob in the system, displayed on the desktop watermark and the Version Reporter Applet by shell library shell32.dll. The fingerprint is directly appended at the end of the BuildLab string (queried from registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion) in the form of a build hash (officially named the "EULA hash"), computed by splitting the WFS blob into 8 arrays of 16 bytes and XORing each of the 16 bytes together. The EULA hash can then be derived in order to source build leaks to existing Microsoft affiliates; the visibility of the EULA hash and the confidentiality warnings depend on the presence of certain compiler flags.

Fingerprinting data is now stored in the registry key HKLM\SYSTEM\WPA\478C035F-04BC-48C7-B324-2462D786DAD7-5P-9. The registry key must exist in the Windows install, or the operating system will either refuse to boot or non-deterministically bugcheck with codes KERNEL_SECURITY_CHECK_FAILURE (during boot) or CRITICAL_STRUCTURE_CORRUPTION (if the periodic WFS check during runtime fails). Furthermore, most parts of the fingerprint data are now encrypted, and therefore require reverse engineering efforts to decode and extract the relevant information.

Bugs and quirks

Desktop Gadget Gallery

Gadgets do not render themselves correctly.

Gallery

Interface