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July 10, 2018—KB4338826 (OS Build 15063.1206)


View products that this article applies to.

Note  This release also contains updates for Windows 10 Mobile (OS Build 15063.1206) released July 10, 2018.

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Improvements and fixes

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

  • 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.
  • Addresses an issue that, in some cases, causes the wrong IME mode to be chosen on an IME-active element.
  • Addresses an issue in which DNS requests disregard proxy configurations in Internet Explorer and Microsoft Edge.
  • Addresses additional issues with updated time zone information.
  • Evaluates the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
  • Security updates to Internet Explorer, Microsoft Edge, Windows apps, Windows graphics, Windows virtualization, Windows kernel, and Windows Server.

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

For more information about the resolved security vulnerabilities, see the Security Update Guide.

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Known issues in this update

Symptom Workaround
After installing this update, some devices running network monitoring workloads may receive the 0xD1 Stop error because of a race condition.

This issue is resolved in KB4345419.

Restarting the SQL Server service may fail occasionally with the error, “Tcp port is already in use”. This issue is resolved in KB4345419.
When an administrator tries to stop the World Wide Web Publishing Service (W3SVC), the W3SVC remains in a "stopping" state, but cannot fully stop or be restarted. This issue is resolved in KB4345419.

After you install any of the July 2018 .NET Framework Security Updates, a COM component fails to load because of “access denied,” “class not registered,” or “internal failure occurred for unknown reasons” errors. The most common failure signature is the following:

Exception type: System.UnauthorizedAccessException

Message: Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))

This issue is resolved in KB4343885.

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How to get this update

This update will be downloaded and installed automatically from Windows Update. To get the standalone package for this update, go to the Microsoft Update Catalog website.

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4338826

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Keywords: windows 10 version 1703

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Article Info
Article ID : 4338826
Revision : 36
Created on : 3/12/2019
Published on : 3/12/2019
Exists online : False
Views : 347

Minor Releases