November 12, 2019—KB4525241 (OS Build 16299.1508)


None **Reminder **March 12 and April 9 were the last two Delta updates for Windows 10, version 1709. Security and quality updates will continue to be available via the express and full cumulative update packages. For more information on this change please visit our [blog](<https://techcommunity.microsoft.com/t5/Windows-IT-Pro-Blog/Windows-10-quality-updates-explained-amp-the-end-of-delta/ba-p/214426>). **Reminder** Windows 10, version 1709, reached end of service on April 9, 2019 for devices running Windows 10 Home, Pro, Pro for Workstation, and IoT Core editions. These devices will no longer receive monthly security and quality updates that contain protection from the latest security threats. To continue receiving security and quality updates, Microsoft recommends updating to the latest version of Windows 10. **IMPORTANT **Windows 10 Enterprise, Education, and IoT Enterprise editions will continue to receive servicing at no cost per the lifecycle announcement on October 2018. **ePub support ended in Microsoft Edge**Microsoft Edge has ended support for e-books that use the .epub file extension. For more information, see [Download an ePub app to keep reading e-books](<https://support.microsoft.com/help/4517840>). For more information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following article. ## Highlights * Updates to improve security when using Internet Explorer and Microsoft Edge. * Updates to improve security when using external devices (such as game controllers, printers, and web cameras) and input devices such as a mouse, keyboard, or stylus. * Updates to improve security when using Microsoft Office products. ## Improvements and fixes This security update includes quality improvements. Key changes include: * Addresses an issue that causes events that are based on Windows Defender Application Control Code Integrity to be unreadable. * Provides protections against the Intel® Processor Machine Check Error vulnerability (_[CVE-2018-12207](<https://portal.msrc.microsoft.com/security-guidance/advisory/CVE-2018-12207>)_). Use the registry setting as described in the Guidance KB article_. _(This registry setting is disabled by default.) * Provides protections against the Intel® Transactional Synchronization Extensions (Intel® TSX) Transaction Asynchronous Abort vulnerability ([CVE-2019-11135](<https://portal.msrc.microsoft.com/security-guidance/advisory/CVE-2019-11135>)). Use the registry settings as described in the Windows Client article_. _(These registry settings are enabled by default for Windows Client OS editions.) * Security updates to Microsoft Scripting Engine, Internet Explorer, Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Input and Composition, Microsoft Edge, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Linux, Windows Kernel, Windows Datacenter Networking, Windows Peripherals, and the Microsoft JET Database Engine. 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, please refer to the [Security Update Guide](<https://portal.msrc.microsoft.com/security-guidance>). ## Known issues in this update **Symptom**| **Workaround** ---|--- Certain operations, such as **rename**, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege.| Do one of the following: * Perform the operation from a process that has administrator privilege. * Perform the operation from a node that doesn’t have CSV ownership. Microsoft is working on a resolution and will provide an update in an upcoming release. When setting up a new Windows device during the Out of Box Experience (OOBE), you might be unable to create a local user when using Input Method Editor (IME). This issue might affect you if you are using the IME for Chinese, Japanese, or Korean languages.**Note** This issue does not affect using a Microsoft Account during OOBE.| This issue is resolved in KB4534318. ## How to get this update **Before installing this update**Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security fixes. For more information, see [Servicing stack updates](<https://docs.microsoft.com/windows/deployment/update/servicing-stack-updates#why-should-servicing-stack-updates-be-installed-and-kept-up-to-date>).If you are using Windows Update, the latest SSU (KB4523202) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/home.aspx>).**Install this update****Release Channel**| **Available**| **Next Step** ---|---|--- Windows Update and Microsoft Update| Yes| None. This update will be downloaded and installed automatically from Windows Update. Microsoft Update Catalog| Yes| To get the standalone package for this update, go to the [Microsoft Update Catalog](<http://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4525241>) website. Windows Server Update Services (WSUS)| Yes| This update will automatically synchronize with WSUS if you configure **Products and Classifications** as follows:**Product**: Windows 10**Classification**: Security Updates **File information**For a list of the files that are provided in this update, download the [file information for cumulative update 4525241](<https://download.microsoft.com/download/8/7/4/87476133-d252-4554-867a-ee9b8414d12b/4525241.csv>).