Microsoft has released preview updates for Windows 10 version 1809, 1903 and 1909 on September 16, 2020. The updates KB4577069 for Windows 10 version 1809 and KB4577062 for Windows 10 version 1903 and 1909, are non-security updates that address various issues in the operating systems.
The updates are not downloaded and installed automatically on Windows 10 devices; administrators find them under optional updates and need to select them manually for installation. The main idea behind these updates is to make them available to get feedback and Telemetry data before the wider rollout begins on the Patch Tuesday of the coming month. Windows 10 updates are cumulative in nature, and what is fixed in the preview updates is included in the next cumulative update for the operating system.
Most Windows users should not install these updates unless they fix issues that are experienced on the devices. Even then, it is recommended to create a system backup before installing them on a device.
KB4577069 for Windows 10 version 1809
Improvements and fixes
- Internet Explorer 11 notifies users about Flash Player’s upcoming end of support in December 2020.
- Fixed an issue when using the Group Policy to configure IE’s homepage.
- Fixed an unnamed issue in Microsoft Edge when using IE mode that occurred when “Configure enhanced hang detection for Internet Explorer mode” was enabled.
- Fixed the cause of the error “”0x80704006. Hmmmm…can’t reach this page” in legacy Edge.
- Fixed a five minute or longer delay in Remote Desktop Protocol sessions.
- Fixed the error “Class not registered” that caused VB apps to stop working.
- Fixed a black screen issue when using Windows Virtual Desktop machines.
- Fixed an issue that caused Cortana to stop working on multi-user devices when installing, uninstalling, and reinstalling the same update.
- Fixed a stop error when the initialization of the graphics adapter failed.
- Reduced the likelihood of missing fonts.
- Fixed an issue that displayed a black screen momentarily when a program calls the Desktop Windows Manager Thumbnail API.
- Fixed an issue that caused the first East Asian language character typed into a Microsoft Foundation Class Library (MFC) DataGrid to not be recognized.
- Fixed a File Explorer close unexpectedly issue.
- Fixed the “no features to install” error when attempting to install features with admin credentials.
- Adds a Group Policy option to display on the domain and username when signing-in.
- Fixed an issue that affected default application associations during updates.
- Fixed an issue that caused programs to close unexpectedly when entering East Asian characters after changing the keyboard layout.
- Fiji time zone information updates.
- Fixed a Microsoft System Centre Operations Manager issue that prevented it from monitoring a customer’s workload.
- Fixed a performance issue in PowerShell.
- Fixed an issue with creating HTML reports using tracerpt.
- Fixed access violation issues in lsass.exe.
- Fixed an issue that prevented data under HKLMSoftwareCryptography from being migrated during feature updates.
- Fixed an issue that prevented BitLocker from being enabled after installing Server Core App Compatibility Feature on Demand.
- Addressed an issue that created duplicate Foreign Security Principal directory objects for Authenticated and Interactive users in the domain partition.
- Addressed an issue that prevented a call to NCryptGetProperty() from returning the correct pbOutput value when pszProperty was set to “Algorithm Group” and you were using a Trusted Platform Module (TPM) 1.2 device.
- Fixed a Windows Defender Application Control issue that enforced rules that should be audit only.
- Fixed a WinHTTP AutoProxy issue that caused it to not comply with Time To Live values on the Proxy Auto-Configuration file.
- Fixed a Software Load Balancing issue that might cause a connection to an application to fail.
- Adds new but unnamed functionality to the robocopy command.
- Adds Secure Sockets Layer certificate authentication over HTTP/2.
- Fixed a reconnecting issue when using Always On VPN.
- Fixed an issue in Microsoft Office that caused apps to close unexpectedly when using Korean Input Method Editor.
- Adds an Azure Active Directory (AAD) Device Token that is sent to Windows Update (WU) as part of each WU scan.
- Addressed an issue that failed to log events 5136 for group membership changes in certain scenarios.
- Fixed a deadlock when Offline Files are enabled.
- Fixed an issue that caused deduplication jobs to fail.
- Removed the call to www.microsoft.com that the Remote Desktop Client makes when signing-out using a Remote Desktop Gateway.
- Addressed issues with evaluating the compatibility status of Windows.s
- Addressed an issue with setting the “Restrict delegation of credentials to remote servers” Group Policy with the “Restrict Credential Delegation” mode on the RDP client.
Known issues
- The long-standing “0x800f0982 – PSFX_E_MATCHING_COMPONENT_NOT_FOUND.” error on devices with “some” Asian language packs installed.
KB4577062 for Windows 10 version 1903 and 1909
Improvements and fixes
- Internet Explorer 11 notifies users about Flash Player’s upcoming end of support in December 2020.
- Fixed an issue when using the Group Policy to configure IE’s homepage.
- Fixed an issue that caused “certain” apps to go into a repair cycle that is unwanted.
- Fixed the error “Class not registered” that caused VB apps to stop working.
- Fixed a black screen issue when using Windows Virtual Desktop machines.
- Fixed a HDR streaming issue that might display 4K HDR content darker than expected.
- Fixed a stop error when the initialization of the graphics adapter failed.
- Reduced the likelihood of missing fonts.
- Fixed an issue that caused a device to stop responding after using a pen for several hours.
- Fixed an issue that caused the first East Asian language character typed into a Microsoft Foundation Class Library (MFC) DataGrid to not be recognized.
- Fixed a “I forgot my Pin” failing issue in a Windows Hello for Business On-Premise deployment.
- Fixed a File Explorer close unexpectedly issue.
- Fixed an issue that affected default application associations during updates.
- Fixed the “no features to install” error when attempting to install features with admin credentials.
- Time zone update for Fiji.
- Fixed a stop error issue when using the Microsoft Surface Slim Pen.
- Fixed stop error 0xC2 in usbccgp.sys.
- Fixed an issue that caused random line breaks in PowerShell.
- Fixed an issue when creating HTML reports using tracerpt.
- Allows the DeviceHealthMonitoring Cloud Service Plan on Windows 10 Business and Windows 10 Pro editions.
- Fixed an issue that prevented data under HKLMSoftwareCryptography from being migrated during feature updates.
- Fixed an issue stating that a smart card pin was not successful despite that it was successful.
- Addressed an issue that created duplicate Foreign Security Principal directory objects for Authenticated and Interactive users in the domain partition.
- Fixed an issue that prevented BitLocker from being enabled after installing Server Core App Compatibility Feature on Demand.
- Fixed an access violation issue in lsass.exe.
- Fixed a Windows Defender Application Control issue that enforced rules that should be audit only.
- Fixed a device reset issue when hibernating for devices with Dynamic Root of Trust for Measurement enabled.
- Windows Hello Face recognition updated to work “well” with 940nm wavelength cameras.
- Reduces distortions and aberrations in Windows Mixed Reality head-mounted displays.
- Makes sure that the new Windows Mixed Reality HMDs meets minimum specification requirements and defaults to a 90Hz refresh rate.
- Fixed a stop error on a Hyper-V host.
- Fixed a reconnecting issue when using Always On VPN.
- Adds an Azure Active Directory (AAD) Device Token that is sent to Windows Update (WU) as part of each WU scan.
- Addressed an issue that failed to log events 5136 for group membership changes in certain scenarios.
- Addressed an issue with the Microsoft Cluster Shared Volumes File Systems (CSVFS) driver that prevented Win32 API access to SQL Server Filestream data.
- Fixed a deadlock when Offline Files are enabled.
- Fixed an issue that caused deduplication jobs to fail.
- Fixed an issue that caused programs to stop working when using Microsoft’s Remote Desktop sharing APIs.
- Removed the call to www.microsoft.com that the Remote Desktop Client makes when signing-out using a Remote Desktop Gateway.
- Adds support for new Windows Mixed Reality motion controllers.
- Addressed issues with evaluating the compatibility status of Windows.s
- Addressed an issue with setting the “Restrict delegation of credentials to remote servers” Group Policy with the “Restrict Credential Delegation” mode on the RDP client.
Known issues
- No known issues according to the support page
Now You: do you install preview updates on your devices?
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