Windows 10 Updates KB4497934, KB4499183 (May 21, 2019)

[German]On May 21, 2019 (3rd Tuesday of the month), Microsoft released several cumulative updates for Windows 10 (V1809 and V1803) and its Windows Server counterparts. Here is an overview of the relevant packages


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Remarks on Windows 10 Updates

The information can be found in the Windows 10 Update History page. Please note that support for older Windows 10 versions has expired. Windows 10 Home and Windows 10 Pro will then no longer receive updates.

Feature updates are not auto installed

Starting with the May 21, 2019 updates (for example, Update KB4497934), Microsoft changes the procedure for upgrading to new versions of Windows 10. Users can decide when to install feature updates. I reported about this in the blog post Windows 10 May 2019 Update brings back Update control. This method was recently tested for the first time (see Windows 10 V1903 update KB4497093 with new distribution method).

Update KB4497934 for Windows 10 V1809

Cumulative Update KB4497934 for Windows 10 V1809 and Windows Server 2019 raises the build to 17763,529. The update includes quality improvements, but no new operating system features. Here is the list of changes: 

  • Allows users to go back to a host browser from a Windows Defender Application Guard (WDAG) container.
  • Addresses an issue with looping redirects between Microsoft Edge and Internet Explorer 11.
  • Updates wininet.dll to prevent the re-creation of File Transfer Protocol (FTP) control sessions.
  • Addresses an issue that may cause Microsoft Edge to hide annotations added to a PDF file, such as inked notes, highlights, and comments.
  • Addresses an issue that removes UserRights policies from all users in a security group when you remove a device from a mobile device management (MDM) server or Microsoft Intune deletes a UserRights policy.
  • Addresses an issue that disconnects a remote desktop session when you lock the session using a third-party credential provider.
  • Addresses an issue that causes Microsoft Office and other applications to prompt for a password after you change a user account password. This issue occurs on hybrid Azure Active Directory (AD) joined systems.
  • Addresses an issue that prevents ActiveX controls from automatically installing through a proxy server.
  • Addresses an issue that prevents you from signing in to a Microsoft Surface Hub device with an Azure Active Directory account. This issue occurs because the previous sign-out did not complete successfully.
  • Addresses an issue that causes a sign-in to fail with the error, “Incorrect Username or password” when using an empty or null password and Windows Defender Credential Guard is enabled.
  • Addresses an issue that may cause a temporary KRB_AP_ERR_MODIFIED Kerberos sign-in failure in applications and services configured to use a Group Managed Service Account (GMSA). This issue occurs after the automatic update of the service account password.
  • Addresses an issue that may prevent BitLocker from encrypting data drives when the “Enforce drive encryption on fixed data drives” Group Policy is configured.
  • Addresses an issue that prevents updates from downloading from a Windows Server Update Services (WSUS) server when a Windows Defender Application Control policy is set to manage which updates can be deployed.
  • Addresses an issue that may cause event 7600 in the Domain Name System (DNS) server event log to contain an unreadable server name.
  • Addresses an issue that fails to record a local user’s last logon time even when the user has accessed the server’s network share.
  • Addresses an issue that prevents NumLock from working properly in a Remote Assistance session when the Remote Assistance window gains and loses focus.
  • Updates time zone information for Morocco.
  • Updates time zone information for the Palestinian Authority.
  • Addresses an issue with the International Components for Unicode (ICU) data, which were not updated for the time zone and the new Japanese Era.
  • Addresses an issue with the “Allow uninstallation of language features when a language is uninstalled.” Group Policy.
  • Addresses an issue in which a File Share Witness does not remove Server Message Block (SMB) handles, which causes a server to eventually stop accepting SMB connections.
  • Addresses an issue in which Windows attempts to renew Azure Active Directory (AAD) token certificates when there is no internet connectivity. This issue occurs during AAD authentication and slows the performance of applications.
  • Addresses an issue with scrollLeft in Internet Explorer.
  • Addresses an issue that causes rendering to stop working for <svg> elements.
  • Addresses an issue with Assigned Access deployments (formerly Kiosk Mode) that prevents a user from logging on to an Assigned Access profile. This affects all locales and occurs when the local administrator’s group is not named using the English spelling of “Administrators”. In the Event Viewer, Event 31000 shows the source as “Microsoft-Windows-AssignedAccess/Admin” and displays the error message, “The group used to assign the application can’t be found.”
  • Addresses an issue that prevents a Generation 2 virtual machine from starting on a Windows Server 2019 Hyper-V host. In the Microsoft-Windows-Hyper-V-Worker-Admin event log, Event ID 18560 displays, “VM name was reset because an unrecoverable error occurred on a virtual processor that caused a triple fault.”

This update is optional and will only be offered if the user explicitly requests the search for updates in the settings page. The update can also be downloaded and installed from the Microsoft Update Catalog. However, it is important to ensure that the latest Servicing Stack Update (SSU) is installed. Microsoft lists a whole range of known issues related to this update.

In addition, Microsoft has made direct improvements to the update client for Windows 10 V1809 to improve its reliability.

Update KB4499183 for Windows 10 V1803

Cumulative Update KB4499183 for Windows 10 V1803 raises the build to 17134,799. The update includes quality improvements, but no new operating system features. Here is the list of changes: 


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  • Allows users to go back to a host browser from a Windows Defender Application Guard (WDAG) container.
  • Addresses an issue that causes Internet Explorer to stop responding to a browse request.
  • Addresses an issue with looping redirects between Microsoft Edge and Internet Explorer 11.
  • Updates wininet.dll to prevent the re-creation of File Transfer Protocol (FTP) control sessions.
  • Addresses an issue that prevents the OS from loading new icon files if it encounters an icon file that has a bad format.
  • Addresses an issue to set the date separator properly in the Japanese short date format. For more information, see KB4469068.
  • Updates time zone information for the Palestinian Authority.
  • Addresses an issue in which the desktop wallpaper image set by a Group Policy will not update if that wallpaper image has the same name as the previous image.
  • Addresses an issue that prevents the removal of Bluetooth® peripheral devices from some systems with specific Bluetooth radios.
  • Addresses an issue with using an apostrophe or single quote character in the log entries of the Event Log Service.
  • Addresses an issue in which Windows attempts to renew Azure Active Directory (AAD) token certificates when there is no internet connectivity. This issue occurs during AAD authentication and slows the performance of applications.
  • Addresses an issue that prevents updates from downloading from a Windows Server Update Services (WSUS) server when a Windows Defender Application Control policy is set to manage which updates can be deployed.
  • Addresses an issue that disconnects a remote desktop session when you lock the session using a third-party credential provider.
  • Addresses an issue that may cause a temporary KRB_AP_ERR_MODIFIED Kerberos sign-in failure in applications and services configured to use a Group Managed Service Account (GMSA). This issue occurs after the automatic update of the service account password.
  • Addresses an issue that prevents ActiveX controls from automatically installing through a proxy server.
  • Addresses an issue that causes a sign-in to fail with the error, “Incorrect Username or password” when using an empty or null password and Windows Defender Credential Guard is enabled.
  • Addresses an issue that causes Microsoft Office and other applications to prompt for a password after you change a user account password. This issue occurs on hybrid Azure Active Directory (AD) joined systems.
  • Addresses an issue with BranchCache when it is in distributed cache mode. BranchCache may use more disk space than assigned for the republication cache. To fully address the issue, devices that have exceeded the disk space assignments should empty BranchCache using the netsh branchcache flush command.
  • Addresses an issue that may cause a Stop D1 error when you increase the random-access memory (RAM) capacity of a CPU (“hot add”) on a virtual machine.
  • Addresses an issue that may cause event 7600 in the Domain Name System (DNS) server event log to contain an unreadable server name.
  • Addresses an issue that may cause an error when you attempt to access a Network File System (NFS) share.
  • Addresses an issue that may cause a server to need a restart because the system nonpaged pool consumes too much memory.
  • Addresses an issue that prevents NumLock from working properly in a Remote Assistance session when the Remote Assistance window gains and loses focus.
  • Addresses an issue with the “Allow uninstallation of language features when a language is uninstalled.” Group Policy.
  • Addresses an issue in Windows Defender Application Guard (WDAG) that displays the error “0xc000026b” when a user signs out.
  • Addresses an issue that causes the Windows Event Log service to stop working when certain characters are included in an event.
  • Addresses an issue that causes rendering to stop working for <svg> elements.

This update is optional and will only be offered if the user explicitly requests the search for updates in the settings page. The update can also be downloaded and installed from the Microsoft Update Catalog. However, it is important to ensure that the latest Servicing Stack Update (SSU) is installed. Microsoft lists a whole range of known issues with this update.

Similar articles:
Windows 10 V1809 Update KB4495667 (May 3, 2019)
Microsoft Security Update Summary (May 14, 2019)
Patchday: Updates for Windows 7/8.1/Server (May 14, 2019)
Patchday Windows 10 Updates (May 14, 2019)
Patchday Microsoft Office Updates (May 14, 2019)
Windows 10: Out of band updates for browse bug (05/19/2019)
Windows 10 Mai 2019 Update released


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