Windows 8 build 7875

6.2.7875.fbl_grfx_dev1.101102-1700
	Build of Windows 8
Architecture	x64
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 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]

Like build 7850, the messages shown when setup is starting, installing or upgrading Windows, restarting the computer or preparing the OOBE are cut off. This quirk persists until build 7899.
When booting in to OOBE after an upgrade, the system might bugcheck with the code SYSTEM_SERVICE_EXCEPTION.
This build can't be installed or run on newer versions of VirtualBox, as a bugcheck will occur. This bug persists until build 8014.

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.

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.