Windows 10 build 9883

Windows 10 build 9883 is a build of Windows 10, which was originally released to partners enrolled into the Technology Adoption Program (TAP). The x64 Pro checked/debug compile of this build was uploaded to BetaArchive on 19 September 2015.https://www.betaarchive.com/forum/viewtopic.php?f=72&t=34922&p=402669 The free compile containing both the Core and Pro SKUs, was later uploaded on 22 April 2022.
It is the last available build to use the 6.4 kernel version. The debug version of this build contains many development apps used to test the basic capabilities of what a Metro/UWP app can potentially do.
== Changes ==
=== Settings ===
* The PC Settings app has been renamed to Settings.
* Most pages have been reorganized into new categories.
* There are now separate pages for managing Wi-Fi, Ethernet, and VPN settings.
* There is now a dedicated search box on the sidebar. However, the search charm will still open to show results.
== Findings ==
=== Hidden features ===
The following hidden features have been found within this build:
====XAML Logon UI====
It can be enabled by merging the following registry file:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\TestHooks]
"Threshold"=dword:00000001
The key will take effect immediately and the new logon UI should appear.
====XAML Start menu====
It can be enabled by merging the following registry file:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ImmersiveShell\Launcher]
"UseExperience"=dword:00000001
After merging the registry file, log off and log back in for it to start working.
It should be noted that in the current stage of development it's highly unstable and has a chance of crashing and not working at all.
====Search box on the taskbar ====
It can be enabled by merging the following registry key:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Search]
"EnableSearchBox"=dword:00000001
After that, right click on the taskbar, and click on Search and select Show search box. Even if the user later disables it, it'll stay available.
Due to being early in development, the user can right click on it and perform the same tasks that can be done on a regular edit box.
====Move the toast notifications to the bottom====
Toast notifications can be moved to the bottom, like in later builds of Windows 10, can be done by merging this registry file:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer]
"DisplayToastAtBottom"=dword:00000001
After doing that, log off and log back in for the change to take effect.
====Internal Insider page====
It can be enabled by merging the following registry key:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsSelfHost\Applicability]
"ThresholdOptedIn"=dword:00000001
"ThresholdInternal"=dword:00000001
==== Microsoft Eva (Mobile) voice====
It can be enabled by merging the following registry key:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens\MSTTS_V110_enUS_EvaM]
@="Microsoft Eva Mobile - English (United States)"
"409"="Microsoft Eva Mobile - English (United States)"
"CLSID"="{179F3D56-1B0B-42B2-A962-59B7EF59FE1B}"
"LangDataPath"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,53,\
00,70,00,65,00,65,00,63,00,68,00,5f,00,4f,00,6e,00,65,00,43,00,6f,00,72,00,\
65,00,5c,00,45,00,6e,00,67,00,69,00,6e,00,65,00,73,00,5c,00,54,00,54,00,53,\
00,5c,00,65,00,6e,00,2d,00,55,00,53,00,5c,00,4d,00,53,00,54,00,54,00,53,00,\
4c,00,6f,00,63,00,65,00,6e,00,55,00,53,00,2e,00,64,00,61,00,74,00,00,00
"VoicePath"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,53,00,\
70,00,65,00,65,00,63,00,68,00,5f,00,4f,00,6e,00,65,00,43,00,6f,00,72,00,65,\
00,5c,00,45,00,6e,00,67,00,69,00,6e,00,65,00,73,00,5c,00,54,00,54,00,53,00,\
5c,00,65,00,6e,00,2d,00,55,00,53,00,5c,00,4d,00,31,00,30,00,33,00,33,00,45,\
00,76,00,61,00,00,00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens\MSTTS_V110_enUS_EvaM\Attributes]
"Age"="Adult"
"Gender"="Female"
"Version"="11.0"
"Language"="409"
"Name"="Microsoft Eva Mobile"
"SharedPronunciation"=""
"Vendor"="Microsoft"
"DataVersion"="11.0.2013.1022"
After that, it can be used within the Text to Speech properties and other places that use the same voices.
==Test UWP apps ==
This build's debug compile comes with many development UWP apps to test various functionality. These UWP apps are all a part of the Windows Communication apps (microsoft.windowscommunicationsapps), which in retail builds includes the Calendar, Mail and People apps.
The list of the debug apps in this build is as follows:
*AddressWell Test App - tests the contact picker
*AddressWellUT - unit test for the contact picker
*Assert - reports assert failures for apps
*AttachmentWellUT - unit test for the "attachment well" - possibly a file picker
*Calendar - the regular Calendar app
*Calendar Provider Test - lets the user perform various actions with the calendar, however crashes when the button to do the action is pressed
*CalendarTest - Calendar app with mock data, doesn't require a sign in, and retains the user's added events
*CalendarUT - unit test for the calendar
*CalPlatUT - unit test for the calendar platform
*CanvasUT - unit tests for the canvas
*CommUT - unit tests for the communication platform
*FontSelectorUT - unit test for the font selector
*FromControlUT - unit test for the from control - possibly the "From" field in an e-mail client
*IC Test - lets the user test how various communications controls react to various data
*JxUT - unit tests for "Jx"
*Mail - the regular Mail app. Doesn't seem to load
*MailTest - Mail app with mock data
*MailUT - unit tests for the Mail app
*MenuArrowKeyHandlerUT - unit test for the menu arrow key handler - some sort of menu
*People - People app with the ability to use mock data
*PeopleUT - unit tests for the People
*Picker Test - lets the user test the contact picker
*PlatformUT - unit tests for the platform
*Protocol Activation Test App - lets the user test launching the People app via various protocols
*SendASmileUT - unit test for Send a Smile - possibly a feedback tool
*ShareAnythingUT - unit test for Share Anything
*ShareTargetTestApp - lets the user test sharing to an app. As it's a share target, content can be shared to this app from another app, where it pops up as a charm and shows information about the shared content
*ShareTargetUT - unit tests for the share target
*Sharing Test - lets the user test sharing to another app
*Skype Test App - lets the user test Skype activation parameters
*SyncUT - unit tests for syncing
*TAEF Tailored Application Host Process - crashes on startup
*TAEF Tailored Managed Application Host Process - crashes on startup
*Test Harness - lets the user test various things relating to communication apps
*TxUT - unit tests for "Tx"
*Windows Live From Control Test App - lets the user test the "From" control
*Windows Live Modern Canvas Test App - crashes on startup
===Gallery===
9883AddressWell Test App.png|AddressWell Test App
9883Calendar Provider Test_b1.png|Calendar Provider Test
9883CalendarTest_b1.png|CalendarTest
9883IC Test_b1.png|IC Test
Windows10-6.4.9883.0-MailTest.png|MailTest
9883People_b1.png|People (splash page)
9883People_0_b1.png|People (main page with mock data)
Windows10-6.4.9883.0-Picker Test.png|Picker Test
9883Protocol Activation Test App_b1.png|Protocol Activation Test App
Windows10-6.4.9883.0-ShareTargetTestApp.png|ShareTargetTestApp
9883sharingtest.png|ShareTargetTestApp being shared to from Sharing Test
Windows10-6.4.9883.0-Sharing Test.png|Sharing Test
9883Skype Test App_b1.png|Skype Test App
Windows10-6.4.9883.0-Test Harness.png|Test Harness
9883Windows Live From Control Test App_b1.png|Windows Live From Control Test App
====Unit test app====
The UI is the same between all the unit test apps. Only the unit tests themselves differ.
9883CanvasUT_b1.png|Unit test selection
9883CanvasUT_0_b1.png|Running unit tests
9883FontSelectorUT_b1.png|Results page
==Bugs and quirks==
===Metro applications===
This build's Metro applications are known to be unstable, notable problems include a memory leak in the Settings app and most developer apps not working correctly.
===Desktop Window Manager===
Desktop Window Manager in this build is missing some newer window animations that were introduced in build 9860 and build 9879 despite having a later compile date.
===Shutdown crash===
There is a chance of the system crashing when shutting down.
===Installation===
The Debug version of this build is not installable by default due to a corrupt msi.dll file in the install.wim. To install this build, apply the xdelta patch against the ISO file to restore the proper msi.dll file.
===Incorrect window thumbnail border color===
If window auto-colorization is enabled, the window thumbnail borders on the taskbar 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 restarting Windows.
===Search box===
The text inside of the search box utilizes the System font and the W in "Windows" is not capitalized.
==Gallery==
===User interface===
File:Win8boot.png|Boot screen
File:6.4.9821-Thumbnail-error.png|Incorrect window thumbnail border color
File:Windows 10 build 9883-2025-01-07-20-49-45.png|Desktop with search box enabled
File:9883notify.png|Notifications on the bottom
File:9883Settings b1.png|Settings
File:9883Settings 0 b1.png|Internal Insider page
File:Windows10-6.4.9883-Debug-winver.png|winver of the debug compile
===Logon screen===
9883lock1.png|Lock screen (on the logon screen)
9883lock2.png|User selection
9883lock3.png|Password entry
9883lock4.png|Logging in
9883lock5.png|Ctrl+Alt+Del screen
9883lock6.png|Shutdown prevented
9888 Hidden lock screen enabled.png|Lock screen (from an already logged in user account)
==References==
Category:Windows 10 builds