Windows 10 build 9807

Windows 10 build 9807 is a pre-Technical Preview build of Windows 10 originally released to Microsoft partners participating in the Ecosystem Engineering Access Program (EEAP) on 6 August 2014.Microsoft. Windows Desktop Threshold Release Notes: Build 9807.0.140803 Early Partner Drop, Ecosystem Engineering Access Program. 6 August 2014. The x86 compile of this build in the Simplified Chinese language variant was shared online on 17 May 2022. The x64 English compile of this build was later shared on 3 November 2024 along with its server counterpart and x64 public Symbol MSI. It is the last known build to refer to itself as Windows 8.1. This build is allegedly the third partner release to EEAP despite the likely release of builds 9780 and 9785.http://ms-vnext.net/Win10labs/
Release notes for this build were posted several minutes after its upload, which further identified two previous EEAP releases. The SDK for this build identifies as the "Windows Software Development Kit for Windows 8.2" per this document.
== Editions and keys ==
Edition / SKU Name 	Key
Core 	334NH-RXG76-64THK-C7CKG-D3VPT
Professional 	XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB
ProfessionalWMC (edition upgrade only)	GBFNG-2X3TC-8R27F-RMKYB-JK7QT
== Hidden features ==
=== Search ===
This build includes a nonfunctional Search utility, which is disabled by default. It can be enabled by merging the following registry setting and restarting File Explorer:
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Search]
"EnableProactive"=dword:00000001
== Bugs and quirks ==
=== Timebomb ===
Like other builds found in the fbl_partner_eeap branch, this build uses a test-signed certificate and as a result can be installed on the current date. However, installing this build on the current date disables the ability to change the desktop wallpaper in the Control Panel.
=== Metro UI ===
Dragging a window in full-screen mode in Metro apps will result in Metro UI transitions from Windows 8.1.
=== Search icon on the taskbar ===
If the task view is enabled, the search icon on the taskbar will not be displayed correctly.
=== Control Panel ===
The System Properties page may incorrectly report the total amount of installed and usable RAM found on the machine.
=== Taskbar preview border color ===
If window auto-colorization is enabled, the taskbar preview borders 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 by restarting Windows.
=== explorer.exe error during shutdown ===
When the system shuts down, a memory access error related to explorer.exe may occur.
=== File Explorer ===
The Format dialog doesn't open, making it impossible to format drives through Windows Explorer.
== Gallery ==
=== Interface ===
==== Simplified Chinese version ====
Windows10-6.4.9807-Desktop.png|Desktop
9807-winver.png|winver
Windows10-6.4.9807.0-FileExplorer.png|File Explorer
Windows10-6.4.9807.0-NotificationCenter.png|Notification Center
Windows10-6.4.9807.0-TaskView.png|Task View
Windows10-6.4.9807.0-TaskSwitcher.png|Task Switcher ( menu) 
=== Miscellaneous ===
Win8boot.png|Boot screen
Windows10-6.4.9833-ThumbnailError.png|Incorrect taskbar preview border color
6.4.9821-Shutdown-error.png|explorer.exe error during shutdown
== References ==
Category:Windows 10 builds