Windows 8 build 7746

Build of Windows 8
OS familyWindows NT
Version number6.1
Build number7746
Build revision0
Build labfbl_grfx
Compiled on2010-04-28
Expiration date
Timebomb2010-10-01 (+156 days)
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Windows 8 build 7746 is the first available Milestone 1 build of Windows 8 which was uploaded on 3 May 2020, along with screenshots of several other builds. Being very early in development, many areas still include the Windows 7 branding and the operating system still uses the version number of 6.1. There are no significant changes from its predecessor, apart from the inclusion of several minor bugs.

Editions and keys[edit | edit source]

Edition / SKU Key
Home Premium RHPQ2-RMFJH-74XYM-BH4JX-XM76F
Professional HYF8J-CVRMY-CM74G-RPHKF-PW487
Enterprise H7X92-3VPBB-Q799D-Y6JJ3-86WC6 or 33PXH-7Y6KF-2VJC9-XBBR8-HVTHH
Starter 7Q28W-FT9PC-CMMYT-WHMY2-89M6G

New features and changes[edit | edit source]

Network boot debugging[edit | edit source]

This is the earliest available build to support boot debugging over a network. Drivers are included for Realtek RTL8139 and Intel PRO/1000 network cards. As this is an early iteration of network kernel/boot debugging, it does not implement the encryption key system used in the final iteration of KDNET and hence WinDbg with default network debugging settings (which assumes a key) cannot connect to this build's debugging facility.

Miscellaneous[edit | edit source]

  • Unlike build 7700, this build uses the Windows 7 RTM default wallpaper, a change which first occurred in build 7731.
  • The "Send feedback" shortcut returns to the desktop with similar functionality first observed in Windows 7 build 7000 (albeit with a broken UI) with the inclusion of logging into Product Studio.
  • The preliminary version of Internet Explorer 9 no longer crashes on most websites compared to build 7700. However, its rendering capabilities remain mostly unchanged.
  • Several kernel exports have been added.

Bugs and quirks[edit | edit source]

General[edit | edit source]

Some included applications do not launch.

Installation[edit | edit source]

To install or run this build in VMware Workstation, the hardware compatibility version must be set to versions 8.x/9.x or a PHASE0_EXCEPTION bugcheck will occur when attempting to load the disc image.

Timebomb[edit | edit source]

Unlike other Windows 8 builds, it contains a broken timebomb and can be installed on the current date.

Personalization[edit | edit source]

Similar to Windows 7 builds 6936 and 7000, changing themes is not possible if this build is installed on the current date.

Readme[edit | edit source]

The build was shared along the following readme:


Microsoft Windows 8

Build 6.1.7746.fbl_grfx.100428-2024
x64 Free
MS Partner seed
28 April 2010

And images of:
An unknown 777x build (7777 probably, it's out there)
An unknown 778x build
6.1.7792.winmain (all I know)
6.1.7793 (the person who gave this to me said the builds were two builds apart, so you can tell this :p)
6.2.7875.fbl_grfx_dev1.101102-1700 (A very cool build, basically 7850+, it would be great if this leaked pssst)
6.2.7880.fbl_ (all I know)

Here's a (little) present, as part of the tons of leaks that have been going on lately :D.

Some of y'all are gonna be fuckin pissed with this, but I took precautions to prevent any names coming out so don't worry! This comes from our "good friend" zammis originally.

This is the most boring build known to man (so why be pissed?). The background has reverted to the Windows 7 background, and the only non-internal change I can see is the Send Feedback tool, which was removed before 7850 anyway.

This is one of the first builds to refer to itself as Windows 8. Have fun, really - BIOS date is April 28th, 2010. 

Also included are screenshots of various Windows 8 builds, mostly from "the gap" - 7850 to 7927. These have been EDITED to protect the identities of those who gave them to me, both from legal issues and retards on betaarchive pestering them "HEY GIV ME WINDOWS 8 BILD 7875 NAO" retards. They are NOT fake and I can tell you that they are not fake. I have the original images of these builds, but I am not going to give them to you until at the very least any potential leak of these builds. Furthermore, a report from a tool that I am working on that was run under 7791 for testing purposes is shown, so you can see most of what 7791 has in the Metro department.

Notes about these builds:
- They ALL come from zammis.
- 7791 is the first build with a functional start screen. 
- There is an IE lockout in 77xx for the IE9 UI involving a function in iertutil. 
- 7814 is identical to 7850 in terms of metro.
- 7898 is a real build, there are two compiles of it, both kernel lab.
- Redlock R74, the latest release, DOES NOT WORK on 7878 to 7898. It DOES work on 7791 to 7875. I DO have a test build of Redlock (lucas mentioned this test build in public BW discord), but I am NOT about to leak that to you. This is due to Metro being M2 reverse integration hell around this time. 7791 actually works on the original release of Redlock R71 fwiw.
- 7753 is the partner seed build that came after this.
- 7875 is scary to some people
- 7878 is the first with new autoplay, oobe, and 79xx-y metro.
- Yes late 78xx had arial as the title bar font. God knows why. See 7867 if you're not convinced.
- The new BSOD was introduced inbetween 7880 and 7898.
- I might have a few more images.

Redpill versions:
7791: 2
7793: 6
7814, 7850: 8

7927: 21

NO I will not tell you who gave me this build so you can spam their DMs on BA or Discord or Anywhere
NO I will not tell you who gave me the screenshots of the other builds.
NO I will not tell you who have the other builds.
NO I don't have anything else.
NO I don't know the full extent of who has what.
NO I'm not going to leak any PMs of these individuals.
and finally NO this build has no metro features or the aforementioned IE lockout. Metro wasn't a thing until 778x, and it wasn't functional until 7791 as you can see. 

YES I am doing this for the sake of preservation - these can't sit on my and others' hard drive forever
YES the cool people know who they are.
YES they're all going to hate me now.
YES I am trying to get people to come forward with what they have and leak it - some people even want the late 78xx stuff to leak - late 77xx and 7875 to 7898 is the coolest range of win8 imo - I'm leading by example here, but obviously you don't HAVE to leak shit.


Gallery[edit | edit source]