KB4476976 Update

Improvements and fixes

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This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

• Addresses an issue that may cause Microsoft Edge to stop working with certain display drivers.
• Addresses an issue that may cause third-party applications to have difficulty authenticating hotspots.
• Addresses an issue that causes promotions of non-root domains to fail with the error, “The replication operation encountered a database error.” The issue occurs in Active Directory forests in which optional features like Active Directory recycle have been enabled.
• Addresses an issue related to the date format for the Japanese era calendar. For more information, see KB4469068.
• Addresses a compatibility issue with AMD R600 and R700 display chipsets.
• Addresses an audio compatibility issue when playing newer games with 3D Spatial Audio mode enabled through multichannel audio devices or Windows Sonic for Headphones.
• Addresses an issue that may cause audio playback to stop responding when playing Free Lossless Audio Codec (FLAC) audio content after using a Seek operation such as rewind.
• Addresses an issue that allows users to uninstall apps from the Start menu when the “Prevent users from uninstalling applications from Start menu” group policy is set.
• Addresses an issue that causes File Explorer to stop working when you click the Turn On button for the timeline feature. This issue occurs when the “Allow upload of user activities” group policy is disabled.
• Addresses an issue that prevents users from installing a Local Experience Pack from the Microsoft Store when that language is already set as the active Windows display language.
• Addresses an issue that causes some symbols to appear in a square box on a text control.
• Addresses an issue with two-way audio that occurs during phone calls for some Bluetooth headsets.
• Addresses an issue that may turn off TCP Fast Open by default on some systems.
• Addresses an issue that may cause applications to lose IPv4 connectivity when IPv6 is unbound.
• Addresses an issue on Windows Server 2019 that may break connectivity on guest virtual machines (VMs) when applications inject the low-resource flag on packets.
• Addresses an issue that occurs if you create a page file on a drive with FILE_PORTABLE_DEVICEcharacteristics. The “Windows created a temporary warning” message appears.
• Addresses an issue that causes Remote Desktop Services to stop accepting connections after accepting several connections.
• Addresses an issue in Windows Server 2019 that causes a Hyper-V VM to remain at the bootloader screen for OS selection when restarting the machine. This issue occurs when Virtual Machine Connection (VMConnect) is attached.
• Addresses an issue with rendering of end-user-defined characters (EUDC) in Microsoft Edge.
• Updates the Ltotape.sys driver to add native support for Linear Tape-Open 8 (LTO-8) tape drives.
• Addresses an issue that causes SYSPREP to fail with the error, “Sysprep was not able to validate your Windows installation…”. The issue occurs if you run SYSPREP after performing an in-place upgrade to Windows 10, version 1809 and then remove the Windows.old folder using Disk Cleanup (cleanmgr.exe) or Storage Sense.
• Addressed an issue that causes virtual machine (VM) creation to fail when Node Interleaving is enabled.
• Addresses an issue that prevents users from enabling Storage Maintenance Mode on timeout if the storage is under load.
• Addresses an issue that prevents the screen reader from reading screen text properly.
• Addresses an issue that causes the clock and the calendar flyout to ignore user settings for Japanese Era date and time formats. For more information, see KB4469068.
• Addresses an issue that can overwrite gan-nen support behavior for the Japanese Era with a newer update. For more information, see KB4469068.
• Addresses an issue that fails to recognize the first character as the abbreviation for the Japanese Era name. For more information, see KB4469068.
• Addresses an issue that fails to display the correct Japanese Era name in Microsoft Office Visual Basic for Applications. For more information, see KB4469068.

If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

Known issues in this update

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Symptom	Workaround
Applications that use a Microsoft Jet database with the Microsoft Access 97 file format may fail to open if the database has column names greater than 32 characters. The database will fail to open with the error, “Unrecognized Database Format”.	Use one of the following options: Option 1: Modify the database to ensure that all column names are less than or equal to 32 characters. Option 2: Convert the database to the .accdb file format. (Note: To use the .accdb file format, you must change the Connection string after conversion.) The easiest way to convert is to use Microsoft Access 2010 or earlier. Use Microsoft Access to open a database that has an older file format. You will be asked if you would like to convert. Click Yes and save the database with the .accdb extension. Option 3: Convert the database to a newer .mdb file format. (Note: This doesn’t require a change to the Connection string.) Use Microsoft Access to open a database that has an older file format. You will be asked if you would like to convert. Click Yes and save the database with the .accdb file extension. Open the .accdb. From the File menu, click Save as and select Access 2002-2003 Database. Microsoft is working on a resolution and estimates a solution will be available early February.
After installing KB4480116, some users report that they cannot load a webpage in Microsoft Edge using a local IP address. Browsing fails or the webpage may become unresponsive.	Open the Control Panel and select Internet Options. On the Security tab, select the Trusted Sitesicon. Select the Sites button. Clear the check box for Require server verification (https:) for all sites in this zone. In the Add this website to the zone: box, type the local IP address that failed to load, such as http://192.168.0.1. Select the Add button. Select the Require server verification (https:) for all sites in this zone check box. Select the Close button. Select the OK button. Restart Microsoft Edge. Microsoft is working on a resolution and will provide an update in an upcoming release.