Windows 8 build 7955 (fbl_srv_wdacxml)

6.2.7955.0.fbl_srv_wdacxml.110228-1930
	Build of Windows 8
OS family	Windows NT
Version number	6.2
Build number	7955
Build revision	0
Architecture	x86
Build lab	fbl_srv_wdacxml
Compiled on	2011-02-28
Base build
	6.2.7955.0.fbl_srv.110225-2127
Expiration date
Timebomb	2011-07-01 (+123 days)
SKUs
	Ultimate; Not available by default:; Starter; Home Basic; Home Premium; Professional; Enterprise
Product key
	MVYTY-QP8R7-6G6WG-87MGT-CRH2P; D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV (alt)
About dialog

Windows 8 build 7955 (fbl_srv_wdacxml) is a build of Windows 8, which was uploaded to BetaArchive on 25 April 2011.

Prior to its leak, multiple images were made. An image from an unknown source was posted to BetaArchive. Two images were also uploaded to Italian Windows beta report site winbeta.it. Although no archives have been found of the page, the images were posted to BetaArchive as well.

Bugs and quirks[edit | edit source]

System Reset[edit | edit source]

If System Reset is launched while this build is running, it will say that no installation media has been found, even if the correct installation media is inserted. However, this feature will work normally if it is launched from the installation media.

General[edit | edit source]

If using VMware Workstation versions 15.x or above changes in build 7878, attempting to restart or shutdown in this build will cause a softlock. To fix this, use the Power menu from the VM section.

Aero[edit | edit source]

Only the top portion of the window frame is blurred when using the Windows Aero theme, leaving the side borders transparent.

System Reserved partition[edit | edit source]

This build seems to have the System Reserved partition shown in Explorer, with its drive letter usually set to D:.

Setup and Redpill[edit | edit source]

To upgrade to this build, launch installprep.exe in the sources folder of the installation media, as the legacy setup client will error out. Also, user-installed programs cannot be migrated to this build.
As originating from a build focused on developing WDAC present in the server counterpart, setup will state that it is upgrading this computer to Windows Server 2008 R2.
At the end of the second stage of clean setup and the third and fourth stages of upgrade setup, as well as the final stage of redpilling, the startup sound plays, but will get cut after ¾ due to the following restart of the computer.