Windows 10 update KB4577062 releases for version 1909 and 1903 (preview)

Microsoft is releasing the KB4577062 update as an optional update for devices running Windows 10 version 1909 and 1903. The update is available as preview, and it delivers several improvements that are expected to be arrive during the October 2020 Patch Tuesday rollout.

The KB4577062 update bumps the version number to build 18363.1110 and 18362.1110 for version 1909 and 1903 respectively, and according to the software giant, adds a new notification to Internet Explorer to inform the end of support of Adobe Flash in December 2020. The update also includes fixes for apps going into an unwanted repair cycle, darker than expected high dynamic range (HDR) content, missing fonts, device stop responding after using a pen, and Windows Mixed Reality.

In addition, Windows 10 version 1809 is also getting a preview of the KB4577069 update, which bumps the version number to build 17763.1490, addresses a few issues, and includes a notification to inform users about the Adobe Flash end of support deadline.

Update KB4577062 for Windows 10 version 1909 and 1903
Update KB4577069 for Windows 10 version 1809
Uninstall update KB4577062 to fix problems
Download September 2020 update for Windows 10

Update KB4577062 for Windows 10 version 1909 and 1903

Microsoft has announced KB4577062 in the Windows support site, and it’s referred as “September 16, 2020—KB4577062 (OS Builds 18362.1110 and 18363.1110) Preview” If you’re already running the November 2019 Update or May 2019 Update, this update will address these problems:

Adds a notification to Internet Explorer 11 that informs users about the end of support for Adobe Flash in December 2020.
Addresses an issue with Microsoft Edge IE Mode that occurs when you enable Configure enhanced hang detection for Internet Explorer mode in Microsoft Edge.
Fixes a problem that causes certain apps to go into an unwanted repair cycle.
Addresses an issue that, in certain scenarios, causes applications to stop working if they are created using Visual Basic for Applications (VBA).
Ensures that new Windows Mixed Reality HMDs meet minimum specification requirements and default to a 90Hz refresh rate.
Fixes a problem that might display 4K high dynamic range (HDR) content darker than expected when you configure certain non-HDR systems for HDR Streaming.
Addresses an issue that might display an empty black screen when a device is connecting to a Windows Virtual Desktop (WVD) machine.
Fixes a problem in which selecting I forgot my Pin from Settings>Accounts>Sign-in options fails in a Windows Hello for Business On-Premise deployment.
Addresses an issue that causes a device to stop responding after you have been using a pen for several hours.
Fixes a problem that causes a stop error when the initialization of the graphics adapter fails.
Addresses an issue to reduce the likelihood of missing fonts.
Fixes a problem that fails to recognize the first East Asian language character typed into a Microsoft Foundation Class Library (MFC) DataGrid.
Addresses an issue that causes File Explorer to close unexpectedly when you use a Ribbon shell extension under specific circumstances.
Fixes a problem that affects default application associations during certain upgrade scenarios. This might cause numerous toast notifications to appear when you first sign in after the upgrade.
Addresses an issue that generates a “No features to install” message when you add a feature, even if you provide administrative credentials.
Fixes a problem that causes a stop error when using Microsoft Surface Slim Pen on certain editions of Microsoft Surface Pro X or Microsoft Surface Laptop 3.
Updates 2021 time zone information for Fiji.
Addresses stop error 0xC2 in usbccgp.sys.
Addresses an issue that prevents the content under HKLM\Software\Cryptography from being carried over during Windows feature updates.
Fixes a problem in which Windows Defender Application Control enforces package family name rules that should be audit only.
Addresses an issue that displays an error that states that a smart card PIN change was not successful even though the PIN change was successful.
Fixes a problem that causes random line breaks when you redirect PowerShell console error output.
Addresses an issue with creating HTML reports using tracerpt.
Allows the DeviceHealthMonitoring Cloud Service Plan (CSP) to run on Windows 10 Business and Windows 10 Pro editions.
Fixes a problem that might create duplicate Foreign Security Principal directory objects for Authenticated and Interactive users in the domain partition.
Addresses an issue that prevents you from enabling BitLocker after installing the Server Core App Compatibility Feature on Demand (FOD).
Fixes a problem, which occurs after an update, that causes devices that have the Dynamic Root of Trust for Measurement (DRTM) enabled to unexpectedly reset when hibernating.
Updates the configuration of Windows Hello Face recognition to work well with 940nm wavelength cameras.
Reduces distortions and aberrations in Windows Mixed Reality head-mounted displays (HMD).
Addresses an issue that causes an access violation in lsass.exe when a process is started using the runas command in some circumstances.
Fixes a problem that causes a stop error on a Hyper-V host when a virtual machine (VM) issues a specific Small Computer System Interface (SCSI) command.
Addresses an issue that prevents Always On VPN (AOVPN) from automatically reconnecting when resuming from Sleep or Hibernate.
Removes the HTTP call to www.microsoft.com that the Remote Desktop Client (mstsc.exe) makes at sign out when using a Remote Desktop Gateway.
Adds support for certain new Windows Mixed Reality motion controllers.
Adds an Azure Active Directory (AAD) Device Token that is sent to Windows Update (WU) as part of each WU scan. WU can use this token to query for membership in groups that have an AAD Device ID.
Fixes a problem that fails to log events 5136 for group membership changes in certain scenarios.
Addresses an issue with the Microsoft Cluster Shared Volumes File Systems (CSVFS) driver that prevents Win32 API access to SQL Server Filestream data.
Fixes a problem that causes a deadlock when Offline Files are enabled.
Addresses an issue that causes deduplication jobs to fail with stop error 0x50 when you call HsmpRecallFreeCachedExtents().
Fixes a problem with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
Addresses an issue that causes applications stop working when they use Microsoft’s Remote Desktop sharing APIs. The breakpoint exception code is 0x80000003.
Fixes a problem with setting the “Restrict delegation of credentials to remote servers” Group Policy with the “Restrict Credential Delegation” mode on the RDP client

You can download the updates to install them manually for version 1909 with the links below:

KB4577062 64-bit | Download
KB4577062 32-bit | Download

If you’re still running version 1903, you can use these download links:

KB4577062 64-bit | Download
KB4577062 32-bit | Download

Update KB4577069 for Windows 10 version 1809

Microsoft has also announced KB4577069 in the Windows support site, and it’s referred as “September 16, 2020—KB4577069 (OS Build 17763.1490) Preview.” If you’re already running the Windows 10 October 2018 Update on your device, this update will address these issues:

Adds a notification to Internet Explorer 11 that informs users about the end of support for Adobe Flash in December 2020.
Addresses an issue with Microsoft Edge IE Mode that occurs when you enable Configure enhanced hang detection for Internet Explorer mode in Microsoft Edge.
Fixes a problem that might generate the error ”0x80704006. Hmmmm…can’t reach this page” when using Microsoft Edge Legacy.
Addresses an issue with using Group Policy Preferences to configure the homepage in Internet Explorer.
Fixes a problem that displays nothing on the screen for 5 minutes or more during the Remote Desktop Protocol (RDP) session.
Addresses an issue that causes Cortana to stop working on multi user devices when you install, uninstall, and reinstall the same update.
Fixes a problem that, in certain scenarios, causes applications to stop working if they are created using Visual Basic for Applications (VBA).
Addresses an issue that might display an empty black screen when a device is connecting to a Windows Virtual Desktop (WVD) machine.
Fixes a problem that causes a stop error when the initialization of the graphics adapter fails.
Addresses an issue that fails to recognize the first East Asian language character typed into a Microsoft Foundation Class Library (MFC) DataGrid.
Fixes a problem to reduce the likelihood of missing fonts.
Addresses an issue that displays a black screen momentarily when an application calls the Desktop Window Manager (DWM) Thumbnail API.
Fixes a problem that causes File Explorer to close unexpectedly when you use a Ribbon shell extension under specific circumstances.
Addresses an issue that generates a “No features to install” message when you add a feature, even if you provide administrative credentials.
Provides the ability to set a Group Policy that displays only the domain and username when you sign in.
Updates 2021 time zone information for Fiji.
Fixes a problem that affects the Microsoft System Centre Operations Manager (SCOM) ability to monitor a customer’s workload.
Addresses an issue that affects default application associations during certain upgrade scenarios.
Fixes a problem that causes applications to close unexpectedly when a user inputs East Asian characters after changing the keyboard layout.
Addresses a performance issue that occurs when PowerShell reads the registry to check if the ScriptBlockLogging registry key is in the registry.
Addresses an issue with creating HTML reports using tracerpt.
Fixes a problem that causes an access violation in lsass.exe when a process is started using the runas command in some circumstances.
Addresses an issue that might create duplicate Foreign Security Principal directory objects for Authenticated and Interactive users in the domain partition.
Fixes a problem that prevents a call to NCryptGetProperty() from returning the correct pbOutput value when pszProperty is set to “Algorithm Group” and you are using a Trusted Platform Module (TPM) 1.2 device.
Addresses an issue in which Windows Defender Application Control enforces package family name rules that should be audit only.
Fixes a problem that prevents the content under HKLM\Software\Cryptography from being carried over during Windows feature updates.
Addresses an issue that prevents you from enabling BitLocker after installing the Server Core App Compatibility Feature on Demand (FOD).
Fixes a problem in which the WinHTTP AutoProxy service does not comply with the value set for the maximum Time To Live (TTL) on the Proxy Auto-Configuration (PAC) file.
Addresses an issue that causes Microsoft Office applications to close unexpectedly when using a Korean Input Method Editor (IME).
Adds an Azure Active Directory (AAD) Device Token that is sent to Windows Update (WU) as part of each WU scan. WU can use this token to query for membership in groups that have an AAD Device ID.
Fixes a problem that might redirect Software Load Balancing (SLB) traffic to a different host when that traffic goes through a multiplexer
Adds Secure Sockets Layer (SSL) certificate authentication over HTTP/2.
Addresses an issue that prevents Always On VPN (AOVPN) from automatically reconnecting when resuming from Sleep or Hibernate.
Fixes a problem with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows.
Addresses an issue that fails to log events 5136 for group membership changes in certain scenarios.
Removes the HTTP call to www.microsoft.com that the Remote Desktop Client (mstsc.exe) makes at sign out when using a Remote Desktop Gateway.
Fixes a problem that causes a deadlock when Offline Files are enabled.
Addresses an issue that causes deduplication jobs to fail with stop error 0x50 when you call HsmpRecallFreeCachedExtents().
Fixes a problem with setting the “Restrict delegation of credentials to remote servers” Group Policy with the “Restrict Credential Delegation” mode on the RDP client.

Uninstall update KB4577062 to fix problems

If the KB4577062 update is causing issues on your device, you can always uninstall it to revert the changes.

To uninstall KB4577062 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:4577062 
```
In the command, replace “4577062” for KB number that correspond to the update that you’re trying to uninstall. For example, if you’re trying to uninstall update KB4577062, then the number that you can have to use in the command is “4577062.”
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 KB4577062, you can remove update from the Advanced startup environment using these steps.

Download September 2020 update for Windows 10

These updates are available immediately, they’ll download and install automatically, but you can always force the update from Settings > Update & Security > Windows Update and clicking the Check for updates button. If you’re downloading an optional update, then the update will be available in the Optional updates area. You can find more details about the most recent updates in the Windows 10 update history tracker guide.