Windows 10 update KB4559004 (preview) releases for version 1909 and 1903

Microsoft is now rolling out a preview of update KB4559004 to address a slew of problems with devices running Windows 10 version 1909 and 1903. The update is expected to be fully available in August 2020, but it’s now available as preview for anyone who downloads it manually.

KB4559004 bumps the version number to 18362.997 and 18363.997 for the Windows 10 May 2029 Update and November 2019 Update respectively, and according to the company, the update fixes the Magnifier, Windows Hello face camera recognition, networking problem that may prevent wireless wide area network (WWAN) LTE modem reaching the internet.

Also, for File Explorer, the update KB4559004 addresses problem to allow deletion of preview search terms and isuse that cause the experience to stop working when browsing directories of raw images and other file types.

In addition, the company is also making available a preview of update KB4559003 for Windows 10 version 1809.

Update KB4559004 for Windows 10 version 1903 and 1909
Update KB4559003 for Windows 10 version 1809
Uninstall Windows 10 update KB4559004 to fix problems
Download May 2020 update for Windows 10

Update KB4559004 for Windows 10 version 1903 and 1909

Microsoft has announced KB4559004 in the Windows support site, and it’s referred as “July 21, 2020—KB4559004 (OS Builds 18362.997 and 18363.997) Preview.” If you’re already running the Windows 10 May 2019 Update or the November 2019 Update on your device, this update will address these problems:

Addresses an issue that might prevent a Windows 10 device from reaching the internet when using a wireless wide area network (WWAN) LTE modem. However, the Network Connectivity Status Indicator (NCSI) in the notification area might still indicate that you are connected to the internet.
Fixes a problem that prevents you from installing some .msi apps.
Updates File Explorer to allow you to delete previous terms from the search box.
Addresses an issue that causes File Explorer to stop working when you browse directories of raw images and other file types.
Fixes a problem that prevents family safety features, such as time limits and activity reporting, from working on ARM64 devices.
Addresses an issue that causes an upgrade from Windows 10, version 1903 or Windows 10, version 1909 to fail.
Fixes a problem that prevents you from using sharing functionality in Microsoft Office. This occurs when Conditional Access is enabled.
Addresses an issue in Microsoft Edge IE mode that occurs when you open multiple documents from a SharePoint site.
Fixes a problem in Microsoft Edge IE mode that occurs when you browse using anchor links.
Addresses an issue that causes provisioning for the Universal Windows Platform (UWP) to fail in certain scenarios when using Deployment Image Servicing and Management (DISM).
Fixes a problem that prevents you from opening documents in SharePoint in certain scenarios.
Addresses an issue that might cause the Magnifier to stop working in Microsoft Excel in certain scenarios. As a result, Microsoft Excel might also stop working.
Fixes a problem with Start menu apps and tiles in virtual desktop infrastructure (VDI) environments.
Addresses an issue that might cause apps that use the custom text wrapping function to stop working in certain scenarios.
Fixes a problem that might increase the number of handles when using Microsoft Outlook.
Addresses an issue that causes new child windows to flicker and appear as white squares on server devices that are configured for stark visual contrast.
Fixes a problem that incorrectly calculates long path addresses that have Unicode characters outside of the current system.
Addresses an issue that prevents the migration of the Windows Remote Management (WinRM) service startup type.
Fixes a problem that prevents internet of things (IoT) devices from activating after installing an earlier cumulative update.
Addresses an issue that continues to display the previous username hint in the smart card sign in box after a different user has used the machine with domain credentials.
Fixes a problem that causes lsass.exe to stop working on a terminal server when you enable Remote Credential Guard. The exception code is 0xc0000374.
Addresses an issue that prevents the system from recognizing the Windows Hello face camera.
Fixes a problem that prevents Microsoft Defender Advanced Threat Protection (ATP) from applying file exclusions in some cases, which leads to application compatibility issues.
Addresses an issue that causes automatic investigations to fail in Microsoft Defender ATP.
Improves Microsoft Defender ATP’s ability to identify malicious code injection activities.
Fixes a problem that displays strange characters before the day, month, and year fields in the output from console commands.
Updates dcpromo.exe to remove the “Network access: Restrict clients allowed to make remote calls to SAM” policy from member servers when they are promoted to domain controllers. This allows clients to make Security Accounts Manager (SAM) connections to these domain controllers.
Addresses an issue that might cause Windows 10 devices that enable Credential Guard to fail authentication requests when they use the machine certificate.
Fixes a problem that incorrectly reports Lightweight Directory Access Protocol (LDAP) sessions as unsecure sessions in Event ID 2889.
Addresses an issue that might cause stop error 7E in nfssvr.sys on servers running the Network File System (NFS) service.
Fixes a problem that causes built-in modern applications to stop working on devices configured to use mandatory or roaming user profiles. The error is 802b000a (E_XAMLPARSEFAILED).
Addresses an issue that logs a Distributed Component Object Model (DCOM) error in the System event log when the Distributed File System (DFS) Replication service is started.
Fixes a problem that might cause the Microsoft Remote Assistance process (msra.exe) to stop working when a user is receiving assistance during a computer session. The error is 0xc0000005 or 0xc0000409.
Addresses an issue that causes Server Message Block (SMB) to incorrectly use the original, cached non-Continuous Available handle to a file, which becomes invalid after a network error or storage failover. As a result, applications to fail with errors such as STATUS_UNEXPECTED_NETWORK_ERROR.

You can download the updates to install them manually for version 1903 with the links below:

KB4559004 64-bit | Download
KB4559004 32-bit | Download

If you’re running version 1909, use these links:

KB4559004 64-bit | Download
KB4559004 32-bit | Download

Update KB4559003 for Windows 10 version 1809

Microsoft has also announced KB4559003 in the Windows support site, and it’s referred as “MJuly 21, 2020—KB4559003 (OS Build 17763.1369) Preview.” If you’re already running the Windows 10 October 2019 Update on your device, this update will address these issues:

Fixes a problem that might cause the Magnifier to stop working in Microsoft Excel in certain scenarios.
Addresses an issue in Microsoft Edge IE mode that occurs when you open multiple documents from a SharePoint site.
Fixes a problem in Microsoft Edge IE mode that occurs when you browse using anchor links.
Addresses an issue that prevents Microsoft Defender Advanced Threat Protection (ATP) from applying file exclusions in some cases, which leads to application compatibility issues.
Fixes a problem that might cause apps that use the custom text wrapping function to stop working in certain scenarios.
Addresses an issue that prevents you from opening documents in SharePoint in certain scenarios.
Addresses a reliability issue in dxgkrnl.sys that might cause stop error 0x50 PAGE_FAULT_IN_NONPAGED_AREA.
Fixes a problem that might increase the number of handles when using Microsoft Outlook.
Addresses an issue that causes an application to flicker or stop responding when sharing the application using Microsoft Teams.
Fixes a problem that incorrectly calculates long path addresses that have Unicode characters outside of the current system.
Addresses an issue that prevents Windows 8.1 apps from projecting to a secondary display when those apps use the StartProjectingAsync API.
Fixes a problem in SMB that causes Windows Server 2019 to stop working when using 100 GB network interface cards (NIC).
Addresses an issue that prevents Event Viewer from saving a full set of filtered events when you filter by the date.
Fixes a problem that continues to display the previous username hint in the smart card sign in box after a different user has used the machine with domain credentials.
Addresses an issue that causes lsass.exe to stop working on a terminal server when you enable Remote Credential Guard. The exception code is 0xc0000374.
Fixes a problem that causes automatic investigations to fail in Microsoft Defender ATP.
Improves Microsoft Defender ATP’s ability to identify malicious code injection activities.
Addresses an issue that causes the network controller (NC) host agent to incorrectly report that a virtual machine (VM) has moved.
Fixes a problem that might cause a deadlock in the Wired AutoConfig (dot3svc) service.
Addresses an issue that might prevent applications from running as expected on Active Directory Federation Services 2019 (AD FS 2019) clients.
Fixes a problem that incorrectly reports Lightweight Directory Access Protocol (LDAP) sessions as unsecure sessions in Event ID 2889.
Updates the message users receive that tells them to check their phone for notifications from the Microsoft Authenticator application.
Updates dcpromo.exe to remove the “Network access: Restrict clients allowed to make remote calls to SAM” policy on member servers when they are promoted to domain controllers.
Addresses an issue that might cause Windows 10 devices that enable Credential Guard to fail authentication requests when they use the machine certificate.
Fixes a problem that might cause stop error 7E in nfssvr.sys on servers running the Network File System (NFS) service.
Addresses an issue that discards the Remote Desktop Gateway Secure Sockets Layer (SSL) Bridging settings and resets them to the default.
Fixes a problem that prevents you from updating the port number for HTTPS or the User Datagram Protocol (UDP) settings in the Remote Desktop Gateway Manager.
Addresses an issue that occurs when a standalone Remote Desktop Session Host (RDSH) server allows multiple sessions per user.
Fixes a problem that causes Server Message Block (SMB) to incorrectly use the original, cached non-Continuous Available handle to a file, which becomes invalid after a network error or storage failover. As a result, applications to fail with errors such as STATUS_UNEXPECTED_NETWORK_ERROR.
Addresses an issue that causes the Windows Management Instrumentation (WMI) Provider Host (WmiPrvSE.exe) to leak registry key handles when querying Win32_RDCentralPublishedDeploymentSettings.
Fixes a problem that logs a Distributed Component Object Model (DCOM) error in the System event log when the Distributed File System (DFS) Replication service is started.
Addresses an issue that might cause the Microsoft Remote Assistance process (msra.exe) to stop working when a user is receiving assistance during a computer session. The error is 0xc0000005 or 0xc0000409.

Uninstall Windows 10 update KB4559004 to fix problems

If the KB4559004 update is causing issues on your device, you can always uninstall it to revert the changes.

To uninstall KB4559004 or any other quality update on Windows 10, use these steps:

Open Start.
Search for Command Prompt, right-click the top result and select the Run as administrator option.
Type the following command to view the update history and press Enter:
```
wmic qfe list brief /format:table
```
Check the Windows Update history of your device, and identify the update by its HotFixID and InstalledOn information.
Type the following command to uninstall the update from your computer and press Enter:
```
wusa /uninstall /kb:4559004
```
In the command, replace “4559004” for KB number that correspond to the update that you’re trying to remove. For instance, if you’re trying to uninstall update KB4559004, then the number that you can have to use in the command is “4559004.”
Click the Yes button.
Continue with the on-screen directions (if applicable).

Once you complete the steps, the recently installed update will be removed from your computer fixing any issues as a result of the release.

If your computer won’t boot after installing KB4559004, you can remove update from the Advanced startup environment using these steps.

Download July 2020 update for Windows 10

These updates won’t download automatically while they’re in preview, but you can always force them from Settings > Update & Security > Windows Update and clicking the Check for updates button. If you’re downloading an optional update, then you’ll also need to click the Download and install option. You can find more details about the most recent updates in the Windows 10 update history tracker guide.

Starting July 2020, Microsoft will resume non-security releases for Windows 10 and Windows Server version 1809 and later. Also, moving forward updates will disable the RemoteFX vGPU feature because of a security vulnerability.

As a result, after installing this update, attempting to start virtual machines that have RemoteFX vGPU enabled will fail, and messages like the following will appear:

The virtual machine cannot be started because all the RemoteFX-capable GPUs are disabled in Hyper-V Manager.
The virtual machine cannot be started because the server has insufficient GPU resources.

If you must re-enable the feature, you can use these instructions. You can learn more about the vulnerability with these resources: CVE-2020-1036 and KB4570006.