Microsoft today pushed Windows 10 Build 17134.407 (10.0.17134.407) as cumulative update KB4467702 to those on the latest April 2018 update or on Windows 10 version 1803.

The changelog for the Build 17134.407 mentions many more fixes, improvements, and security updates.

Note : This release also contains updates for Microsoft HoloLens (OS Build 17134.407) released November 13, 2018.

Windows 10 Build 17134.407 Changelog:

Improvements and fixes


This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

  • Provides protections against an additional subclass of speculative execution side-channel vulnerability known as Speculative Store Bypass (CVE-2018-3639) for AMD-based computers. These protections aren’t enabled by default. For Windows client (IT pro) guidance, follow the instructions in KB4073119. For Windows Server guidance, follow the instructions in KB4072698. Use these guidance documents to enable mitigations for Speculative Store Bypass (CVE-2018-3639). Additionally, use the mitigations that have already been released for Spectre Variant 2 (CVE-2017-5715) and Meltdown (CVE-2017-5754).
  • Addresses an issue that may prevent developer tools (F12) from starting in Microsoft Edge.
  • Security updates to Microsoft Edge, Internet Explorer, Windows Scripting, Windows App Platform and Frameworks, Windows Graphics, Windows Graphics, Windows Media, Windows Wireless Networking, Windows Kernel, and Windows Server .

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.