Windows 8 build 7875

6.2.7875.fbl_grfx_dev1.101102-1700
	Build of Windows 8
OS family	Windows NT
Version number	6.2
Build number	7875
Architecture	x64
Build lab	fbl_grfx_dev1
Compiled on	2010-11-02
Expiration date
Timebomb	2011-02-05 (+95 days)
About dialog

Windows 8 build 7875 is an interim build of Windows 8. Eight screenshots of this build were included with the original upload of build 7746 on 3 May 2020. The build itself was eventually uploaded on 31 December 2020.

Editions and keys[edit | edit source]

Edition / SKU	Key
Home Basic	YGFVB-QTFXQ-3H233-PTWTJ-YRYRV
Home Premium	RHPQ2-RMFJH-74XYM-BH4JX-XM76F
Professional	HYF8J-CVRMY-CM74G-RPHKF-PW487
Ultimate	D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV

Setup[edit | edit source]

Setup is mostly similar to the previous available build of Windows 8 albeit with the watermark showing on the bottom-right corner. The Windows branding in the OOBE has been swapped out with a disclaimer stating that the build in question is confidential Microsoft material.

Setup
"Setup is" bug
Product key entry
EULA
Select type of installation
Drive partitioning and selection
Setup is copying files
Text cutoff bug
OOBE
setupclient.exe

New features and changes[edit | edit source]

This build contains the first iteration of the new login screen, which can be seen by enabling Redpill features. It enlarges user selection icons and removes the frames. The login screen also now utilizes the active user's desktop background in place of the original Windows 7 logon background.
Additional categories for files and applications have been added to the Search menu, and the first letters of the topmost search suggestion are now highlighted in blue.
A new Microsoft Confidential banner has been introduced, both on top of the leak warning and in place of the original winver branding from Windows 7. The operating system name has also changed to Microsoft Pre-release Windows Operating System, a change first seen in build 7867.
The kernel version has been updated to 6.2.
The copyright date in winver has been updated to 2010. This would persist up to Windows 8 build 7899.
The Windows Aero visual style has also been changed slightly and now features smaller caption buttons in certain dialogs.
The ReFS file system (codenamed Protogon) has been introduced in this build.
Lookup now works on the charms bar, although it only displays a window with the text "AppInfo Title"

Bugs and quirks[edit | edit source]

Installation[edit | edit source]

The last word of status messages shown when starting Setup and before the computer reboots into OOBE is cut off.
When booting in to OOBE after an upgrade, the system might bugcheck with the code SYSTEM_SERVICE_EXCEPTION.
Running this build in VirtualBox with the Hyper-V paravirtualization interface enabled will result in a bugcheck.

Arial[edit | edit source]

This build uses the Arial font for the title bar and watermark because of a typo in aero.msstyles and aerolite.msstyles files. This quirk persisted build 7899.

Aero[edit | edit source]

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.