Windows 8 build 7814

Windows 8 build 7814 is a build of Windows 8 that was shared to the BetaWiki Discord server on 30 September 2021. Prior to being shared, a screenshot was included with the original upload of build 7746 on 3 May 2020. It is the earliest available build to include the Redpill feature locking mechanism and a confidential build warning in the watermark.

Due to its earliness, many areas still say "Windows 7" and the kernel version is still 6.1 (much like builds 7700, 7746, and 7850). The default background image of this build is a blue gradient with a green tint at the lower right and a message at the top advising Microsoft employees not to leak this build.

Setup
This is the first build to contain a new setup assistant. It is stored on the root of the installation media as  alongside with the older client. Like its predecessor, it requests a product key and installation type, but does not cover the entire desktop with a wallpaper. The modern setup assistant would eventually replace the legacy client in later builds; however, the aforementioned legacy client can still be accessed by booting off of the installation media or launching the  executable in the   folder.

After the first reboot when upgrading to this build by using the new setup assistant, the system will boot into the next stage with the text.

Out-of-box experience
The OOBE in this build, while visually similar to Windows 7, has several elements moved around. The first page now only ask for computer name, after which the network location setting appears, having been moved from the last position before the "finalizing your settings" screen. The user account setup then appears, where user account naming part has been moved there, and the HomeGroup setting page no longer appears if the network location is set to Home. The rest of the OOBE continues the same way as Windows 7.

Redpill
This build is the earliest available build to implement Redpill.

The Start screen in this build is rather primitive, having only one view featuring every installed application with a tile. It also includes a button to bring up an early search pane. A very early and non-functional snap UI is seen when the user exits from the Start screen. A primitive Charms bar is also implemented and is accessible by pressing Win on your keyboard, but it is non-functional. New folder icons, along with a preview grid, are present in this build when Redpill is enabled. The next build's Metro is almost identical to this build.

Other features include:
 * Explorer Ribbon UI
 * User tile (located next to Show Desktop)
 * Centered title bar text
 * Explorer up button
 * Built-in PDF reader
 * Built-in USB xHCI drivers
 * Built-in UASP drivers
 * Modern Task Manager
 * Full-screen webcam application
 * ISO mounting functionalities
 * Theme auto-colorization
 * Application Explorer shell location - the tabs include "Tile state" and "Host environment". This is where the Start screen app list is stored, even up to 8.1.
 * Aero Lite (labeled "Windows Classic")
 * Early version of Internet Explorer 9
 * Certificates and digital signatures that recognize the SHA-256 algorithm
 * New Disk Cleanup
 * System Reset
 * Inclusion of Hyper-V in the Professional and Ultimate SKUs
 * Personalized lock screen
 * Portable Workspace Creator
 * .NET Framework 4

Aero Lite
It is the earliest available build to feature the Aero Lite visual style, which was almost identical to the Windows Aero visual style at this point in development.

PDF Reader
There is a preliminary version of the Immersive Reader included, accessible by running  with any PDF file as an argument (or without any argument to open a blank page).

Modern Windows Task Manager
A preliminary version of the Modern Task Manager is included as well. It is accessible by running.

Ribbon UI
A partial implementation of the Ribbon interface is present in Windows Explorer, albeit with placeholder icon resources.

Webcam Capture Application
An early version of the webcam capture application is included as well, accessible by running.

Auto Colorization
Create a copy of a theme from, add   to the end of the   section and apply.

Miscellaneous
The Getting Started application from Windows 7 has been removed.

Installation
The background seen in the Windows Preinstallation Environment is absent in this build.

Desktop Window Manager

 * 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.

Aero
This build appears to have a slightly broken Windows Aero theme, with only the top portion of the window frame using the blur effect, leaving the side borders transparent.

Timebomb
This build contains a non-functional timebomb and as a result can be installed on the current date.

Internet Explorer
Like build 7700, the Internet Explorer 9 engine is unstable and may crash when accessing HTML5 websites.

Help and Support Center
The Help and Support Center application now displays a placeholder page which states that a rework of the application is underway, instead redirecting the user to online help hosted on the official Windows website whilst advising Microsoft employees to not file bugs about the current state of the application.