Windows 8 build 7777

Build of Windows 8
OS family
Timebomb2010-10-01 (+85 days)
Works in
Home Basic
Home Premium

Windows 8 build 7777 is a build of Windows 8, which was shared by a community member on 27 June 2022 alongside build 7779.

Due to its earliness, many areas still say "Windows 7" and the kernel version is still 6.1.

This is the last build to have the title bar text left-aligned (minus the Windows Classic theme in build 7779) and wouldn't appear that way again until Windows 10 builds 9910 and 9913.

New features and changes[edit | edit source]

Branding[edit | edit source]

The EULA has been changed to state the product name as "Windows 8" with an EULA ID of "Win8_M1".

Wallpaper[edit | edit source]

This build replaces the Harmony wallpaper with a blue-green gradient that advises Microsoft employees not to leak the build. There is a difference between this version of the wallpaper and the one from build 7814, which is an asterisk after the word "leak", with the asterisk leading to an additional warning about the legal consequences of sharing the builds outside of Microsoft. The confidential warning was also added to winver. In this build, the confidential warning is on the wallpaper, whereas in build 7814 a watermark is used instead.

Hyper-V[edit | edit source]

This is the first available build to add support for running the Hyper-V hypervisor on the Professional and Ultimate SKUs. Interestingly, if the Hyper-V boot fails, messages asking the user to enable virtual machine extensions will be printed directly onto the boot screen instead of being spewed as an Event Tracing for Windows (ETW) log. A similar occurrence can also be visibly observed in build 7779 and 8128.

Internet Explorer 9[edit | edit source]

Internet Explorer 9 has been updated and now features proper branding along with a preliminary version of the final logo. The new tab page was also redesigned to show popular and suggested sites, with an appearance similar to that of the final version.

.NET Framework 4.0[edit | edit source]

The bundled version of the .NET Framework has been updated from .NET Framework 3.5 in earlier builds to the final version of .NET Framework 4.0.

Help and Support[edit | edit source]

Help and Support has been updated with a new layout. However, navigation might fail as the program is "undergoing major reconstruction".

XHCI[edit | edit source]

Native support for USB 3/XHCI controllers has been added to this build, although it does not function properly and will prevent the build from booting unless the controller is removed from the system.

Control Panel[edit | edit source]

"Change your look"[edit | edit source]

While this build does not have a user tile, the link to the "Change your look" option used to configure it in later builds is already present in this build.

Send Feedback[edit | edit source]

The Send Feedback feature has been removed in this build.

Login screen background sync[edit | edit source]

This build contains an option to sync the desktop background to the login screen, however it doesn't work yet.

Windows Push Notification Services (WNS)[edit | edit source]

This build is the earliest to contain an early version of Windows Push Notification Services (WNS), which is used to provide toast notifications from the Internet in Windows 8 and later. It cannot be activated due to depending on long-dead Microsoft servers.

Settings Synchronization[edit | edit source]

This build introduces Windows 8's settings synchronization between devices functionality. There is no UI in the system to expose this functionality, and the system is dependent on the installation of providers that implement a specific COm interface; the system does not install any providers by default.

Findings[edit | edit source]

Redpill[edit | edit source]

This is the first build to introduce the twinui.dll and twinapi.dll libraries that would later implement parts of the Metro interface, however, both libraries are merely non-functional stubs at this point. The Redpill feature locking mechanism likewise is not implemented either.

Windows Store[edit | edit source]

This build has an extremely early implementation of the Windows Store, dependent on Microsoft intranet-based store servers. It does not work by default as it queries a Microsoft intranet store server (\\ericflo3\winstore) for a file by the name of users.ini to determine if someone's local user account is permitted to use the Windows Store. As this only existed inside Microsoft for a brief spell in 2010, and nowhere else, it will fail to find the server and exit before displaying anything. However, it is possible to patch this and see an offline screen.

Inside the function that evaluates the user's eligibility to use the Store is a call to the Windows API function GetPrivateProfileIntW, which tries to read a value from an INI file and also takes a default value to be returned if the function fails. By changing the default value (stored as an immediate in the function call code) from 0 to 1, the Store is fooled into believing that the current user account is permitted to use it and it will then proceed to start. It will then immediately try and contact an intranet server and then fail because it does not exist, displaying a "could not connect" message.

This patch also works for build 7779, and can be obtained by changing 0x9D9 from 0x01 to 0x00.

users.ini format[edit | edit source]

; Replace user1/user2 with the local user account name of your installation

user1=1 ; permitted to use windows store 
user2=0 ; not permitted to use windows store (any value that is not 1 fails)

Gallery[edit | edit source]

Setup[edit | edit source]

Interface[edit | edit source]