Windows 8 build 7950

Build of Windows 8
Release nameMilestone 2
OS familyWindows NT
Version number6.2
Build number7950
Build revision0
Architecturex86, x64, ARM32
Build labwinmain_win8m2
Compiled on2011-02-23
Expiration date
Timebomb2011-07-02 (+129 days)
About dialog

Windows 8 build 7950 is the official Milestone 2 build of Windows 8. A screenshot of the x86 Free/Retail compile was shown by the website The kernel and several hundred other files for the x86, x64 and ARM32 architectures (in free/retail and checked/debug variants) have been found on the Microsoft Symbol Server in April 2022. The x64 Free/Retail compile of the full build was shared on 18 July 2023.

This build utilizes a valid SHA-1 production-signing certificate (signed by the Microsoft Windows Verification PCA certificate chain, associated with Windows Hardware Quality Labs (WHQL)) and can be booted and installed on the current date.

Editions and keys[edit | edit source]

Edition / SKU Key
Home Premium RHPQ2-RMFJH-74XYM-BH4JX-XM76F
Professional HYF8J-CVRMY-CM74G-RPHKF-PW487

New features and changes[edit | edit source]

Redpill-specific[edit | edit source]

The Redlock tool can be used to unlock all of the Redpill levels on this build, including the Start screen. The Metro user interface in this build generally resembles build 7927, with slight differences.

Miscellaneous[edit | edit source]

Bugs and quirks[edit | edit source]

  • Product policies do not apply correctly on the first boot due to mismatching certificate chains, resulting in a nulled-out Kernel-ExpirationDate value. As a consequence, the watermark is not drawn onto the desktop and the timebomb does not function properly. A subsequent reboot resolves this issue.
  • The Desktop Window Manager may crash when switching users.
  • This build appears to have a broken xHCI driver, and therefore the system will neither restart nor shutdown if USB 3.0 is enabled. Disabling USB 3.0 for the VM (or from BIOS/UEFI, on real hardware) should fix this problem.
  • MS Help may crash when clicking on any surface.

Gallery[edit | edit source]

x64 compile[edit | edit source]

Windows Setup[edit | edit source]

Interface[edit | edit source]

Redpill-specific[edit | edit source]

Out-of-box experience[edit | edit source]
Interface[edit | edit source]
Metro UI[edit | edit source]
Desktop UI[edit | edit source]

x86 compile (unavailable)[edit | edit source]