- Improves compatibility with the Window-Eyes screen reader application.
- Updates to improve security when using Internet Explorer, Microsoft Edge, Bluetooth, networking technologies, and input devices such as a mouse, keyboard, or stylus.
Improvements and fixes
This security update includes quality improvements. Key changes include:
- Updates time zone information for Brazil.
- Updates time zone information for Morocco.
- Addresses an issue with opening or using the Window-Eyes screen reader application that may result in an error and prevent some features from functioning as expected.
- Addresses an issue that prevents users from using the Input Method Editor (IME) if any application started using the runas command.
- Security updates to Windows Storage and Filesystems, Windows Wireless Networking, Windows App Platform and Frameworks, Microsoft Scripting Engine, Internet Explorer, Windows Input and Composition, Windows Cryptography, Windows Virtualization, Windows Datacenter Networking, the Microsoft JET Database Engine, Windows Server, Windows MSXML, and Microsoft Edge.
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.
Windows Update Improvements
Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn't apply to long-term servicing editions.
Known issues in this update
|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:
|After installing this update, applications that were made using Visual Basic 6 (VB6), macros using Visual Basic for Applications (VBA), and scripts or apps using Visual Basic Scripting Edition (VBScript) may stop responding and you may receive an "invalid procedure call error."|| |
This issue is resolved in KB4517276, which is an optional update. It is available on the following release channels:
As with any optional update, you will need to Check for updates to receive and install the update. For instructions, see Update Windows 10.
Note Windows Update for Business customers should apply the update using the Microsoft Update Catalog or Windows Server Update Services (WSUS).
How to get this update
Before installing this update
Microsoft strongly recommends that 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.
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.|
|Windows Server Update Services (WSUS)||Yes|| |
This update will automatically synchronize with WSUS if you configure Products and Classifications as follows:
Product: Windows 10Classification: Security Updates
For a list of the files that are provided in this update, download the file information for cumulative update 4512497.