Recently, Microsoft rolled out new Windows 10 cumulative Update KB3216755 build 14393.726 for and mobile build 10.0.14393.726 for release preview ring members.

Now, Microsoft has released the changelog for cumulative Update KB3216755 build 14393.726 and mobile build 10.0.14393.726. The latest update fixed many bugs of the previous update, most notable fixes include a fix for gaming on multiple monitors, which was a major issue for some users in the recent Cumulative Update.

Fixed in update KB3216755 build 14393.726:

  • Addressed known issue called out in KB3213986—Users may experience delays while running 3D rendering apps with multiple monitors.
  • Addressed issue that prevents the conversion of a 24-bit image to 32 bits.
  • Addressed issue that causes the loss of Windows Firewall rules after upgrade from RTM to 1511 or 1607.
  • Addressed issue that causes a file download from a webpage to fail in Internet Explorer and Microsoft Edge browsers.
  • Addressed issue that prevents the use of the Delete Browsing History feature in Internet Explorer.
  • Addressed issue that loads websites that bypass the proxy server in the local intranet zone when the Intranet Sites: Include all sites that bypass the proxy server (Disabled) is set.
  • Addressed issue where an XSS false positive prevents a webpage from loading after logging in to a site.
  • Addressed issue that prevents users from connecting to a network.
  • Addressed issue that causes the Local Security Authority Subsystem Service (LSASS) to fail.
  • Active Directory Federated Systems is using the Japanese language set.
  • Addressed issue that causes System Center Operations Manager (SCOM) scenarios to fail.
  • Addressed issue that prevents user-built keyboard events from working.
  • Addressed issue that causes incorrect tabledimensions in SAP® applications
  • Addressed issue that overwrites an element when users select a line that is enclosed by an element.
  • Improved reliability of Internet Explorer, Xbox, and Skype.
  • Addressed additional issues with Bluetooth, Internet Explorer, engaged reboot, clustering, Internet Explorer, Japanese Input Method Editor (IME), Windows Shell. Networking, storage, fonts, Xbox, encryption, Group Policy, Point and Print, wireless networking, virtual disk, disk operations, multimedia, Work Folders, encryption, enterprise security, deduplication, domain controllers, Audit File System, Debug Memory Manager, Virtual Machine Management Service (VMMS), Remote Desktop, Task Scheduler, Microphone Wizard, .NET, font cache, system boot, and Surface Studio

Known issues in this update KB3216755

  • The Cluster Service may not start automatically on the first reboot after applying the update.


  • The workaround is to either start the Cluster Service with the Start-ClusterNode PowerShell cmdlet or to reboot the node. 

You can download the update from the Microsoft’s official link below.

Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB3216755)

Cumulative Update for Windows 10 Version 1607 (KB3216755)


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