Microsoft releases Windows 10 Build 19042.423 (KB4568831) to Beta Channel Insiders

• Updates an issue with pasting mixed content of images and text from Microsoft Word into Internet Explorer.
• Updates 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.
• Updates an issue that might display 4K high dynamic range (HDR) content darker than expected when you configure certain non-HDR systems for HDR Streaming.
• Updates an issue that causes the Settings page to close unexpectedly, which prevents default applications from being set up properly.
• Updates an issue that prevents some applications from printing to network printers.
• Updates an issue that might prevent internet connectivity on some cellular modems after upgrading to Windows 10, version 2004.
• Updates an issue that prevents family safety features, such as time limits and activity reporting, from working on ARM64 devices.

This non-security Windows 10 update includes quality improvements. Key changes include:

• Addresses an issue that prevents you from using sharing functionality in Microsoft Office. This occurs when Conditional Access is enabled.
• Addresses an issue that occurs when a third-party application loads hidden tabs into Internet Options.
• Addresses an issue in Microsoft Edge IE mode that occurs when you open multiple documents from a SharePoint site.
• Addresses an issue in Microsoft Edge IE mode that occurs when you browse using anchor links.
• Addresses an issue with pasting mixed content of images and text from Microsoft Word into Internet Explorer.
• Addresses an issue that might cause Microsoft browsers to incorrectly bypass proxy servers.
• Addresses an issue in the Windows Push Notification (WNS) service that prevents you from selecting a virtual private network (VPN) interface to make outbound connections. As a result, you lose connectivity with the WNS service when forced tunneling is used.
• 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.
• Addresses an issue that prevents you from installing some .msi apps. This occurs when a device is managed by a Group Policy that redirects the AppData folder to a network folder.
• Addresses an issue 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 causes new child windows to flicker and appear as white squares on server devices that are configured for stark visual contrast.
• Addresses an issue that causes the Settings page to close unexpectedly, which prevents default applications from being set up properly.
• Addresses an issue that causes all open Universal Windows Platform (UWP) apps to close unexpectedly. This occurs when their installer calls the Restart Manager to restart File Explorer (explorer.exe).
• Addresses an issue that prevents Windows 8.1 apps from projecting to a secondary display when those apps use the StartProjectingAsync API.
• Addresses an issue that prevents family safety features, such as time limits and activity reporting, from working on ARM64 devices.
• Addresses an issue with File Explorer’s preview of .msg files when Microsoft Outlook 64-bit is installed.
• Addresses an issue that causes a KERNEL_SECURITY_CHECK_FAILURE (139) stop error when Windows resumes from Sleep and turns on certain Bluetooth headsets.
• Addresses an issue that might prevent certain display driver reset utilities from properly reinstalling the same driver on the system.
• Addresses a reliability issue in WDF01000.sys.
• Addresses an issue that causes memory leaks when an application calls the CryptCATAdminCalcHashFromFileHandle() function. The leaked memory is reclaimed when the application closes.
• Improves support for non-ASCII file paths for Microsoft Defender Advanced Threat Protection (ATP) Auto Incident Response (IR).
• Addresses an issue that prevents some machines from automatically going into Sleep mode under certain circumstances because of Microsoft Defender ATP Auto IR.
• Addresses an issue that prevents some machines from running Microsoft Defender ATP Threat & Vulnerability Management successfully.
• Addresses an issue that prevents Microsoft Defender ATP from applying file exclusions in some cases, which leads to application compatibility issues.
• Addresses an issue in Microsoft Defender ATP that prevents some machines from reporting the installed applications to Threat & Vulnerability Management.
• 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.
• Addresses an issue that prevents some applications from printing to network printers.
• Addresses an issue in Windows 10 that might cause a printer to be a hidden device in Device Manager after a restart.
• Addresses an issue that might cause the Print Management console to display script errors when you enable the Extended View option.
• Addresses an issue that causes printing to fail in certain scenarios.
• 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.
• Addresses an issue that might prevent internet connectivity on some cellular modems after upgrading to Windows 10, version 2004.
• Addresses an issue that causes telephony applications to lose the first four digits.
• Addresses an issue with in-memory parity bitmaps that can cause data integrity issues on Parity Storage Spaces.
• Addresses an issue that prevents the creation of a storage pool using Manage Storage Spaces in Control panel.
• 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.