Windows 8 build 7791 (fbl core1 kernel)

Windows 8 build 7791 (fbl_core1_kernel) is a build of Windows 8, which was shared on 13 August 2024. Prior to its upload, nine screenshots of which were included with the original upload of build 7746 on 3 May 2020.
This is one of the first builds to have a functional Start screen. It also introduces the Windows 8 PDF reader, and has a significant amount of code for the charms bar.
==New features and changes==
===Control Panel===
The User Accounts page has received some changes. A new "Create a new connected account" option has been added to the Manage Accounts page of the User Accounts control panel. However, at this stage in development, it only opens a broken version of the Choose your look page.
====Your Look====
The old profile picture selection screen was replaced by the new Your Look page. It primarily serves the function of the old one, but was also enhanced with a few functions. The old list of user profile pictures was replaced with a folder view that shows a search query in the C:\ProgramData\Microsoft\User Account Pictures\Default Pictures and C:\Users\Public\User Tiles folders. As it's a folder view, at this point in development it's possible to right click on it and perform the same actions that can be done in any other File Explorer search. The Your Look page also saves the user profile pictures that the user sets in a Installed User Tiles section. However, at this point in development, not only external user tiles are saved, but also system ones.
===Micellaenous===
*The dimensions of the About Windows dialog were changed so that it is more wide.
*Files relating to the new input switcher toolbar (explorerindicator.dll and InputSwitch.dll) have been added. However, at this point, there is no known way to enable the new input switcher yet.
*The Windows Media Center gadget has been removed.
*System crashes now support being displayed at higher VESA resolutions. The system must crash during boot in order for the higher resolution crash screen to appear.
** In addition, applications running in kernel mode, such as CHKDSK now displays at higher resolutions as well.
==Redpill==
===Hidden features ===
====PDF Reader====
The Immersive Reader had it's filename changed to glcnd.exe. It is now accessible by running C:\Windows\System32\glcnd.exe with any PDF file as an argument (or without any argument to open a blank page). Furthermore, it's now possible to open a PDF file with the Ctrl + O keyboard shortcut, or open a search pane with the Ctrl + F keyboard shortcut.
==Bugs and quirks==
===Installation===
*This build has trouble booting setup with a SATA DVD drive. It is recommended to boot from the installation media using an IDE DVD drive, a SCSI DVD drive or an USB Flash drive.
*The background seen in the Windows Preinstallation Environment is absent in this build.
===DWM and Aero=== 
*The Windows Basic and the High Contrast themes do not properly render due to the enforcement of the DWM Aero theme.
* The Aero functionalities do not work on modern versions of VMware Workstation and above due to changes that are incompatible with the graphics stack. Using either VirtualBox or VMware with the 9.x hardware compatibility or older and using 9.x drivers or older is recommended.
*Only the top portion of the window frame is blurred when using the Windows Aero theme, leaving the side borders transparent.
===Help and Support Center===
Help and Support Center is beginning to be reworked, so attempting to navigate to certain pages will lead to either an error or a message informing the user about a reconstruction to appear. The page redirects the user to online help hosted on the official Windows website while advising Microsoft employees to not file bugs about the current state of the application.
===Start screen===
* The Start button on the taskbar still opens the old Start menu. The Start screen can only be opened using either the Windows key or .
:* As a result of this, it's possible to have both the Start screen and Start menu open at the same time.
* The Start screen doesn't resize itself when the user changes the resolution.
* The Start screen shows up in Flip 3D at all times, and in the task switcher if the user has it open.
* The tiles will have random positions and sizes.
===Windows Explorer===
*When Redpilled, the Ribbon always shows Network, Computer and HomeGroup tabs, even when none of the corresponding folder is opened in the window.
*The Recycle Bin might not update right away after deleting a file.
===USB 3===
Trying to boot this build with an USB 3 controller will cause it to hang on boot. It needs to be disabled in order for the build to boot.
== Gallery ==
File:7875 boot screen.png|Boot screen
File:7791start.png|Start screen
File:7791startbug.png|Start screen bug
File:7791snap.png|Snap UI
File:7791help.png|Help and Support
File:7791newIE.png|Internet Explorer 9 with new UI enabled
File:7791applications.png|Applications folder
File:7791computer.png|Explorer with Ribbon
File:7791lang.png|Languages Profile
File:7791reader.png|Reader
File:7791glcndsearch.png|Ditto, search pane
File:7791glcndsearchresult.png|Ditto, search results
File:Windows 8 build 7791-2024-08-14-19-40-28.png|Search pane
File:Portable Workspace Creator b1.png|Portable Workspace Creator
File:7880-crash.png|System crash
===Screenshots uploaded prior to publication===
7791 Metro.png|Start screen bug
7791 Metro 2.png|Snap UI
7791 Metro 3.png|The Metro apps folder
7791 Metro 4.png|Metro downspace
7791 Metro 5.png|PDF reader
7791 Metro 6.png|Microsoft Spy++
7791 Metro 7.png|Partially functional Search charm forcibly brought up via the use of Microsoft Spy++.
7791 MultiMon.png|Multi-monitor taskbar configuration
7791 MultiMon 2.png|Start button is missing on primary display.
== Notes ==
Category:Windows 8 builds