July 9, 2019—KB4507450 (OS Build 15063.1928)

Applies to: Windows 10, version 1703

Highlights


  • Updates an issue with BitLocker encryption recovery mode.
  • Updates to improve security when using Internet Explorer, Microsoft Edge, wireless technologies, and Microsoft Office products.

Improvements and fixes


This update includes quality improvements. Key changes include:

  • Addresses an issue that may cause BitLocker to go into recovery mode if BitLocker is being provisioned at the same time as updates are being installed. 
  • Addresses an issue that may cause some devices with Hyper-V enabled to enter BitLocker recovery mode and receive the error, "0xC0210000".
  • Security updates to Windows Server, Microsoft Scripting Engine, Windows Storage and Filesystems, Microsoft Graphics Component, Windows Input and Composition, Windows Virtualization, Windows App Platform and Frameworks, Windows Kernel, Internet Explorer, 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.

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.

After installing this update, opening or using the Window-Eyes screen reader app may result in an error and some features may not function as expected.

Note Users who have already migrated from Window-Eyes to Freedom Scientific's other screen reader, JAWS, should not be affected by this issue.
We are working on a resolution and will provide an update in an upcoming release. 

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

If you are using Windows Update, the latest SSU (KB4509092) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog

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 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 4507450