November 30, 2017—KB4051963 (OS Build 16299.98)

Improvements and fixes

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

• Addressed a script-related issue that caused Internet Explorer to stop working in some cases.

• Addressed issue with the Input Method Editor’s (IME) text input window for Internet Explorer.

• Addressed issue with rendering a graphics element in Internet Explorer.

• Addressed issue with form submissions in Internet Explorer.

• Addressed issue where the Location-hash is lost when navigating back if you previously navigated to an invalid URL.

• Addressed issue where applications may stop responding for customers who have internet or web proxies enabled using PAC script configurations. This is a result of a reentrancy deadlock in WinHTTP.dll. This can result in the following:

  • Microsoft Outlook cannot connect to Microsoft Office365.

  • Internet Explorer and Microsoft Edge cannot successfully render any content (including local computer content, local network content, or web content).

  • Cisco Jabber stops responding, which blocks messaging and telephony features.

  • Any application or service that relies on WinHTTP is impacted.

• Addressed a performance regression when users run full-screen Microsoft DirectX 9 games and applications.

• Addressed  issue that prevents Forza Motorsport 7 and Forza Horizon 3 from running on some high-end gaming laptop configurations.

• Addressed issue where user selections for Feedback Frequency in Settings > Privacy > Feedback& diagnostics aren't saved.

• Addressed issue where RNDIS5 networking devices don't get a valid IP address or don't show network connectivity. If the issue continues after installing the update, you may need to uninstall and reinstall your Remote NDIS network adapter using Device Manager.

• Addressed issue where if a user manually changes the system's time zone and doesn't log off or restart, the new time doesn't display on the Lockscreen clock.

• Addressed issue that impacted some Epson SIDM (Dot Matrix) and TM (POS) printers, which were failing to print on x86 and x64-based systems. This issue affects KB4048955.

• Addressed issue where users of SQL Server Reporting Services may not be able to use the scrollbar in a dropdown list.

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

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

Known issues in this update

Microsoft is not currently aware of any issues with this update.

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 4051963.