Microsoft pushes Windows 10 cumulative update 14393.321 for PC and Mobile

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Today is Patch Tuesday and as such Microsoft is pushing out new cumulative updates for Windows 10 PC and Mobile.

Update: As of 1:30am ET we can confirm that Release Preview for Mobile is now getting the update too

Build 14393.321 is now live for those on Production (non-Insiders) and Release Preview (e.g. no Slow or Fast Rings) and with it comes new fixes and improvements.

The PC build is listed under KB3194798 during the Windows Update process.

Update: More about the KB updates:

  • KB3192440 (for RTM)
  • KB3192441 (for 1511)
  • KB3194798 (for 1607)

There also seems to be some bifurcation with Release Preview on PC getting a cumulative update while Windows 10 Mobile does not.

Changelog for 14393.321

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

  • Improved reliability of Bluetooth and storage file system.
  • Addressed issue causing printer drivers to not install correctly after installing security update KB317005.
  • Addressed issue causing sign-in errors if a password is entered incorrectly or a new password doesn't meet password complexity requirements after installing security update KB3167679.
  • Addressed issue that required users to log out and log back in before using the application they installed using the Windows installer (MSI).
  • Improved support for networks by adding new entries to the Access Point Name (APN) database.
  • Addressed issue that was causing excessive battery drain on Windows 10 Mobile when connected to Wi-Fi.
  • Addressed issue in which setting up both fingerprint and iris recognition sometimes causes the sign-in to fail on Windows 10 Mobile.
  • Addressed issue that was causing high CPU usage on Windows 10 Mobile.
  • Addressed additional issues with multimedia playback, revised daylight saving time, authentication, Internet Explorer 11, and Windows Shell.
  • Security updates to Microsoft Edge, Internet Explorer 11, Windows registry, and diagnostics hub.

For more information about the complete list of affected files, see KB3194798.

Daniel Rubino
Daniel Rubino
Editor-in-chief

Daniel Rubino is the Editor-in-chief of Windows Central. He is also the head reviewer, podcast co-host, and analyst. He has been covering Microsoft since 2007, when this site was called WMExperts (and later Windows Phone Central). His interests include Windows, laptops, next-gen computing, and watches. He has been reviewing laptops since 2015 and is particularly fond of 2-in-1 convertibles, ARM processors, new form factors, and thin-and-light PCs. Before all this tech stuff, he worked on a Ph.D. in linguistics, watched people sleep (for medical purposes!), and ran the projectors at movie theaters because it was fun.