Windows 10 build 9845

Windows 10 build 9845 is a Technical Preview build of Windows 10. It was initially shared to the public as an x64 version in the Japanese language on 2 July 2015, followed by x86 versions and other languages (including Simplified Chinese, Traditional Chinese, Korean, German, and Swedish) on 19 September 2015. The x64 English version of this build was shared on 4 November 2024.
This is the last build from the fbl_partner_eeap branch. All later available Windows 10 builds (no matter if they were originally released only to partners under the Ecosystem Engineering and Access Program, or publicly to Windows Insiders) up until the RTM (excluding build 9907 (fbl_ie) and build 10176) are flight-signed builds and have a timebomb hardcoded into the system.
== 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
== New features and changes ==
=== User interface ===
The login screen has been completely rewritten, which is now being invoked in LogonController.dll and Windows.UI.Logon.dll instead of authui.dll. At this point of development, it looks identical to the older login screen, but with the addition of a user switcher on the left side. It can be enabled by merging the following registry entry:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\TestHooks]
"Threshold"=dword:00000001 
Windows10-6.4.9845-ENU-LockThreshold.png|New lock screen
Windows10-6.4.9845-ENU-LoginThreshold.png|New login screen
=== Applications ===
The Storage Sense page initially introduced in build 9838 is now functional. It allows the user to monitor the utilized space on a disk as well as organize it into various categories.
9845PCSSS-Main.png|Main page
9845PCSSS-ThisPC.png|"This PC" option
File:9845PCSSS-SystemReserved.png|"System and Reserved" category
9845PCSSS-DesktopApps.png|"Desktop Apps" category
9845PCSSS-MetroApps.png|"Apps and Games" category
9845PCSSS-OtherUP.png|"Other user profiles" category
9845PCSSS-Other.png|"Other" category
9845PCSSS-RemovableSetup.png|Default save locations set up
In addition to the existing PC settings application, a zPC settings application has also been included. It generally resembles the previous PC settings application, with a few differences:
* The application identifies itself as "Settings", similar to later builds. Additionally, the Users and accounts category has been renamed to simply "Accounts".
File:Windows_10-6.4.9845.0-zPCSettings.png|zPC settings main page
File:9845enUSpcsettings.png|Ditto, normal PC settings application
* A "Corners and edges" page has been added under the PC and devices category, which allows the user to manage various settings related to window management, such as toggling the ability to show Metro apps on the taskbar and the ability to show the Charms bar by moving the cursor to the upper right corner.
File:9845ZPCS-CornersAndEdges.png|Corners and edges page
* The Storage Sense page, which resides in the main page in the PC settings application has been moved to the PC and devices category under a new "Disk space" name and with a few differences. The indicator at the top now shows the available disk space instead of the utilized disk space, and the file categories now shows at the main page.
File:9845ZPCS-DiskSpace.png|Disk space page
* Three new options has been added to the Search page under the Search and apps category, which is the "Use Bing to search online", "Your search experience" and "SafeSearch" options.
File:9845ZPCS-Search.png|Search page
File:9845PCSS-Search.png|Ditto, normal PC settings application
* Under the Network category, the Manage page has been merged with the Connections page, while the Workplace page was now much more simplified compared to its counterpart in the traditional PC settings application.
File:9845ZPCN-Connections.png|Connections page
File:9845PCSN-Connections.png|Ditto, normal PC settings application
File:9845ZPCN-Workplace.png|Workplace page
File:9845PCSN-Workplace.png|Ditto, normal PC settings application
=== Miscellaneous ===
Support for the HEVC codec has been added.
File:9845-H265Demo.png|HEVC/H.265 video demonstration
==Bugs and quirks==
=== User interface ===
The power options in the start menu and login screen are not functional in this build.
Some Metro animations does not display properly in this build, which often results in misaligned content and/or cutoff text for a short amount of time.
Windows10-6.4.9845-ENU-MetroAnimBug.png|Metro animation bug
When the system shuts down, a memory access error related to explorer.exe may occur.
When window auto-colorization is enabled, the borders of window thumbnails on the taskbar remain unchanged in color, even when the wallpaper is changed. This problem can be resolved by either manually adjusting the window color via the Control Panel or by performing a restart.
6.4.9821-Shutdown-error.png|explorer.exe error during shutdown
Certain strings in the German and Japanese language versions of this build are either not properly translated or retain their English variants.
== Gallery ==
===Setup===
====English version====
9845enUSsetupautorun.png|Setup
9845enUSOOBE.png|OOBE
====German version====
Windows10-6.4.9845-setup.png|Setup
Windows10-6.4.9845-DEU-OOBE.png|OOBE
====Japanese version====
Windows10-6.4.9845-JPN-Setup-Lang.png|Language selection
Windows10-6.4.9845-JPN-Setup-Main.png|Setup
Windows10-6.4.9845-JPN-Setup-EULA.png|EULA
Windows10-6.4.9845-JPN-Setup-OOBE.png|OOBE
===User interface===
====English version====
9845-StartMenu.png|Start menu
9845enUSsystem.png|System properties
====German version====
Windows10-6.4.9845-Desktop.png|Desktop
Windows10-6.4.9845-About.png|winver
Windows10-6.4.9845-StartMenu.png|Start menu
Windows10-6.4.9845-CharmsBar.png|Charms bar
Windows10-6.4.9845-NotificationCenter.png|Notification center
Windows10-6.4.9845-SystemProperties.png|System properties
Windows10-6.4.9845-DEU-LockThreshold.png|New lock screen
Windows10-6.4.9845-DEU-LoginThreshold.png|thumb|New login screen
Windows10-6.4.9845-DEU-MetroAnimBug.png|Metro animation bug
====Japanese version====
Windows10-6.4.9845-JPN-LockScreen.png|Lock screen
Windows10-6.4.9845-JPN-LoginScreen.png|Login screen
9845JPN-HiddenLockScreen.png|Hidden lock screen enabled
9845JPN-HiddenLogonUI.png|Hidden LogonUI enabled
Windows10-6.4.9845-JPN-Desktop.png|Desktop
Windows10-6.4.9845-JPN-StartMenu.png|Start menu
Windows10-6.4.9845-JPN-StartScreen.png|Start screen
Windows10-6.4.9845-JPN-CharmsBar.png|Charms bar
9845JPN-SearchCharm.png|Search charm
9845JPN-SettingsCharm.png|Settings charm
Windows10-6.4.9845-JPN-NotificationCenter.png|Notification Center
9845JPN-FileExplorer.png|File Explorer
9845JPN-SystemProperties.png|System Properties
9845JPN-TaskManager.png|Task Manager
9845JPN-TaskManager-Ditto.png|Ditto
Windows10-6.4.9845-JPN-Settings.png|Settings app
Windows10-6.4.9845-JPN-IE.png|Internet Explorer 11 (with About dialog)
Windows10-6.4.9845-JPN-MetroRenderError.png|Metro effect rendering error
Windows10-6.4.9845-JPN-ThumbnailError.png|Incorrect window thumbnail border color
Windows10-6.4.9845-JPN-ShutdownError.png|explorer.exe error during shutdown
Windows10-6.4.9845-JPN-winver.png|winver
====Simplified Chinese version====
Windows10-6.4.9845-CHS-StartMenu.png|Start menu
Windows10-6.4.9845-CHS-StartScreen.png|Start screen
Windows10-6.4.9845-CHS-Charms.png|Charms bar
Windows10-6.4.9845-CHS-NotificationCenter.png|Notification Center
9845.0_version.png|winver
Windows10-6.4.9845-CHS-SystemProperties.png|System Properties
Windows_10-6.4.9845.0-NetworkSettings.png|Network settings
Windows_10-6.4.9845.0-zPCSettings.png|zPC Settings
Windows_10-6.4.9845.0-LoginUI.png|Hidden lock screen enabled
Windows_10-6.4.9845.0-LoginUI2.png|Hidden LogonUI enabled
Windows10-6.4.9845-CHS-MetroAnimBug.png|Metro animation bug
====Traditional Chinese version====
9845.0_cht_desktop.png|Desktop
9845.0_cht_winver.png|winver
Windows10-6.4.9845-CHT-StartMenu.png|Start menu
Windows10-6.4.9845-CHT-StartScreen.png|Start screen
Windows10-6.4.9845-CHT-Charms.png|Charms bar
Windows10-6.4.9845-CHT-PCSettings.png|PC settings
Windows10-6.4.9845-CHT-SystemProperties.png|System Properties
Windows10-6.4.9845-CHT-LockThreshold.png|New lock screen
Windows10-6.4.9845-ENU-LoginThreshold.png|New login screen
Windows10-6.4.9845-CHT-MetroAnimBug.png|Metro animation bug
===Miscellaneous===
Win8boot.png|Boot screen
Category:Windows 10 builds