Improvements and fixes
This update includes quality improvements. No new operating system features
are being introduced in this update. Key changes include:
- Enables media content to play e-learning content with plug and play USB adapter cables on Microsoft Edge.
- Ensures that windowed ActiveX content inside an iframe scrolls along with other page content in Internet Explorer 11 during a user-triggered scroll operation.
- Addresses an issue that causes app-specific registry keys to be deleted after updating an application.
- Updates time zone information for Chile.
- Addresses an audio compatibility issue when playing newer games with 3D Spatial Audio mode enabled through multichannel audio devices or Windows Sonic for Headphones.
- Addresses an issue that prevents some users from pinning a web link to the Start menu or the taskbar.
- Addresses an issue in which the desktop lock screen image set by a group policy will not update if the image is older than or has the same name as the previous image.
- Improves performance related to case-insensitive string comparison functions such as _stricmp() in the Universal C runtime.
- Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
- Improves the reliability of the UE-VAppmonitor.
- Addresses an issue that fails to update a user hive when you publish an optional package in a Connection Group after the Connection Group was previously published.
- Addresses an issue that allows files protected by Windows Information Protection to be transferred using Bluetooth to an unmanaged machine.
- Addresses an issue that occurs with the Internet Explorer proxy setting and the out of box experience (OOBE) setup. The initial logon stops responding after Sysprep.
- Addresses an issue that prevents a user from deleting a wireless network profile in some scenarios.
- Addresses an issue that may cause a “STOP 0x1A” error when you use certain applications or log in or log out of a system.
- Addresses an issue in the Timeline feature that causes File Explorer to stop working for some users.
- Addresses an issue that causes the Photos app to stop working when it’s used from the Mail app.
- Addresses an issue in the PLMDebug.exe tool that loses debug sessions when used with a Universal Windows Platform (UWP) app.
- Improves Always On VPN (AOVPN) reconnect and disconnect functionality.
- Addresses an issue that fails to recognize the first character of the Japanese era name as an abbreviation and may cause date parsing issues.
- Addresses an issue that may prevent Internet Explorer from loading images that have a backslash (\) in their relative source path.
- Addresses an issue that may cause applications that use a Microsoft Jet database with the Microsoft Access 95 file format to randomly stop working.
If you installed earlier updates, only the new fixes contained in this package
will be downloaded and installed on your device.
Known issues in this update
After installing this update, users may receive “Error 1309” while installing
or uninstalling certain types of MSI and MSP files.| This issue is resolved in
After installing this update, MSXML6 causes applications to stop responding if
an exception was thrown during node operations, such as appendChild() ,
insertBefore() , and moveNode().The Group Policy editor may stop
responding when editing a Group Policy Object (GPO) that contains Group Policy
Preferences (GPP) for Internet Explorer 10 settings.| This issue is resolved
Any compound document (OLE) server application that places embedded objects
into the Windows Metafile (WMF) using the PatBlt API may display embedded
objects incorrectly.For example, if you paste a Microsoft Excel worksheet
object into a Microsoft Word document, the cells may render with a different
background color.| This issue is resolved in KB4493464.
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
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 (KB4485449) will be offered to you automatically. To get the stand-
alone package for the latest SSU, go to the Microsoft Update
Catalog. Install this
update To download and install this update, go to Settings > Update &
Security > Windows Update and select Check for updates.To get the
stand-alone package for this update, go to the Microsoft Update
website. File information For a list of the files that are provided in
this update, download the file information for cumulative update