Windows 10 update KB4338819
July Patch Tuesday

Windows 10 update KB4338819 (build 17134.165) releases

Almost every major release of Windows 10 is getting a cumulative update in July 2018  — Here's all the details that you need to know.

Right on schedule, almost all supported versions of Windows 10 are getting cumulative updates. In this new Patch Tuesday, Windows 10 version 1803 (April 2018 Update) is getting update KB4338819 to fix a few problems.

KB4338819 bumps the version number to build 17134.165, and according to the company, it addresses problems with security, apps, Universal CRT Ctype family of functions, and more.

What’s new with Windows 10 build 17134.165

Microsoft has announced KB4338819 in the Windows support site, and it’s referred as “July 10, 2018—KB4338819 (OS Build 17134.165)”. If you’re already running the Windows 10 version 1803 on your PC, this update will address these problems:

  • Improves the ability of the Universal CRT Ctype family of functions to correctly handle EOF as valid input.
  • Evaluates the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • Enables debugging of WebView content in UWP apps using the Microsoft Edge DevTools Preview app that’s available in the Microsoft Store.
  • Addresses an issue that may cause the Mitigation Options Group Policy client-side extension to fail during GPO processing.
  • Security updates to Internet Explorer, Windows apps, Windows graphics, Windows datacenter networking, Windows wireless networking, Windows virtualization, Windows kernel, and Windows Server.

What’s new with Windows 10 build 16299.547

The Windows 10 Fall Creators Update (version 1709) is getting update KB4338825, which bumps the build number to 16299.547, and according to Microsoft, it fixes these problems:

  • Fixes a problem where DNS requests disregard proxy configurations in Internet Explorer and Microsoft Edge.
  • Addresses additional issues with updated time zone information.
  • Addresses an issue with form submission in Internet Explorer.
  • Fixes a problem that, in some cases, causes the wrong IME mode to be chosen on an IME-active element.
  • Addresses an issue that causes the latest versions of Google Chrome (67.0.3396.79+) to stop working on Cobalt devices.
  • Evaluates the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • Security updates to Internet Explorer, Microsoft Edge, Microsoft scripting engine, Windows apps, Windows graphics, Windows datacenter networking, Windows virtualization, Windows kernel, and Windows Server.

What’s new with Windows 10 build 15063.1206

If you’re still running the Windows 10 Creators Update (version 1703), you’ll be getting update KB4338826, which bumps the version number to 15063.1206, and address the following issues:

  • Fixes a problem in which DNS requests disregard proxy configurations in Internet Explorer and Microsoft Edge.
  • Addresses an issue with form submission in Internet Explorer.
  • Updates Internet Explorer’s Inspect Element feature to conform to the policy that disables the launch of Developer Tools.
  • Fixes a problem that, in some cases, causes the wrong IME mode to be chosen on an IME-active element.
  • Evaluates the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • Addresses additional issues with updated time zone information.
  • Security updates to Internet Explorer, Microsoft Edge, Windows apps, Windows graphics, Windows virtualization, Windows kernel, and Windows Server.

Older versions of Windows 10

Although the Anniversary Update is no longer supported, organizations with Windows 10 Enterprise or Education are update KB4338814. In addition, the initial release of Windows 10 is receiving update KB4338829.

How to download July 10 update for Windows 10

Update KB4338819 for PCs is available immediately, it’ll download and install automatically, but you can always force the update from Settings > Update & Security > Windows Update and clicking the Check for updates button. You can find more details about the most recent updates in the Windows 10 update history tracker guide.