Windows 8 build 8191

6.2.8191.0.fbl_grfx_dev1.120125-1400
Build of Windows 8
Screenshot
OS familyWindows NT
Version number6.2
Build number8191
Build revision0
Architecturex64
Build labfbl_grfx_dev1
Compiled on2012-01-25
Expiration date
Timebomb2013-01-15 (+356 days)
SKUs
Consumer Preview (Prerelease)
Product key
H9VCT-63NFW-FWHDR-F4J43-972K8
About dialog
8191-Winver.png

Windows 8 build 8191 is a build of Windows 8, which was shared on 21 October 2024. Prior to its leak, a screenshot of this build was shared on 6 July 2024 in BetaWiki Discord server.

New features and changes[edit | edit source]

User interface[edit | edit source]

Metro shell[edit | edit source]

The Remote Desktop communications application has been pinned to the start screen.

Bugs and quirks[edit | edit source]

DWM[edit | edit source]

DWM animations can be quite unstable in this build, producing red artifacts instead of the usual animation.

Filesystem mounting support[edit | edit source]

The shell may attempt to invoke a Windows Explorer window that navigates to an unoccupied drive letter before an ISO image is able to finish mounting, in turn displaying an invalid path error. The ISO image will still have mounted normally, and can be accessed through ordinary means. Virtual hard disk (VHD) images are confirmed to not be impacted by this bug.

USB 3.0/xHCI[edit | edit source]

This build appears to have a broken xHCI driver, and therefore will crash during boot if USB 3.0 is enabled. Disabling USB 3.0 for the VM (or from BIOS/UEFI, on real hardware) should fix this problem.

Compatibility[edit | edit source]

To install or run this build in VMware Workstation, the hardware compatibility must be set to version 9.x or 8.x; otherwise, a bugcheck will occur

Gallery[edit | edit source]

Interface[edit | edit source]

Screenshots uploaded prior to publication[edit | edit source]