Microsoft released KB4598291 revision number 2. This update will up your system build to version .789. Remember, this is not an official release yet. So, install at your own risk.

Fixed issues in KB4598291:

  • We have updated the default values for the following Internet Explorer registry keys:
    • svcKBFWLink = ” ” (empty string)
    • svcKBNumber = ” ” (empty string)
    • svcUpdateVersion = 11.0.1000.
      In addition, these values are no longer updated automatically.
  • We have allowed administrators to disable stand-alone Internet Explorer using Group Policy while continuing to use Microsoft Edge IE mode.
  • We have enabled you to configure certain policies that support Microsoft Edge IE mode by using mobile device management (MDM).
  • We fixed an issue in the Universal C Run-time Library (UCRT) that causes printf() to round floating point numbers incorrectly.
  • We fixed an issue that unexpectedly displays a User Account Control (UAC) dialog box when you enable speech recognition.
  • Fixed an issue where the target application is not notified when you select the Copy Link command from the Share menu.
  • We fixed an issue that causes the 64-bit fmod() and remainder() functions to damage the floating point unit (FPU) stack.
  • We’ve fixed an issue that causes a stop error or causes a device to stop responding when you play a game in full-screen or tablet mode.
  • We fixed an issue where, after upgrading to Windows 10, version 2004, the ctrl+lock key and Alt+Lock key were used to switch to Hiragana or Katakana mode.
  • We fixed an issue that prevents you from opening a document that is on the Windows desktop and generates an error message that “The directory name is invalid.” This issue occurs after you change the location of the desktop on the Location tab of the Desktop Properties dialog box (File Explorer -> This PC -> Desktop).
  • We fixed an issue that creates duplicate cloud provider folders in the File Explorer navigation pane.
  • We have fixed an issue that occurs when the Mandatory Profile check box is selected when copying a user profile.
  • We’ve fixed an issue that can cause the Alt+Tab order to change unexpectedly and you’ll switch to the wrong window.
  • We fixed an issue that prevents ImmGetCompositionString() from returning the space for Furigana when using the Japanese Input Method Editor (IME).
  • We fixed an issue with some special keyboard shortcuts that are used in the DAYi, Yi, and Array IMEs that can cause an application to stop working.
  • We fixed an issue that displays a blank lock screen after a device has awoken from hibernation.
  • We have corrected historical daylight saving time information for the Palestinian Authority.
  • We’ve added support for controlling serial numbers through registration.
  • We’ve fixed an issue that incorrectly disables some Windows 10 Education devices after upgrading to Windows 10, version 2004.
  • We fixed an issue that causes the upload of diagnostic logs to a management service, such as Microsoft Intune, to fail. The error occurs because of a network timeout on a slow network.
  • We have a notification for a user when an administrator logs on to an MDM service, such as Microsoft Intune, to find the location of a managed device.
  • We’ve fixed an issue where users can’t use their smart card credentials if the user hint is the domain credential name (domain-username).
  • We fixed an issue where the use of Local Service for User (S4U) affects the Data Protection API (DPAPI) credential keys and causes users to log off unexpectedly.
  • Fixed an issue that causes the deployment of BitLocker in silent mode to fail with the error 0x80310001. This issue occurs when BitLocker encryption is deployed on hybrid Azure Active Directory (Azure AD) connected devices.
  • We’ve fixed an issue that could cause a black screen to appear or delay sign-in to Hybrid Azure Active Directory-connected devices. There is also no access to login.microsoftonline.com.
  • We’ve fixed an issue that can cause systems that use BitLocker to stop working with the error 0x120 (BITLOCKER_FATAL_ERROR).
  • We fixed an issue that causes a device to stop working when deploying Microsoft Endpoint Configuration Manager when AppLocker is enabled on the device.
  • Fixed an issue that causes the LSASS.exe process to run out of memory on a server with a high authentication load when Kerberos Armoring (Flexible Authentication Secure Tunneling (FAST) is enabled.
  • We fixed an issue that causes LSASS.exe to stop working due to a race condition, resulting in a double free error in Schannel. The exception code is c0000374, and the event log displays the Schannel event 36888, fatal error code 20, and error status 960. This issue occurs after you install Windows updates from September 2020 and later.
  • We fixed a problem with a memory leak that occurs when you authenticate a client certificate to servers that are configured as domain controllers.
  • We fixed an issue with Virtual Interrupt Assert Notification (VINA) interrupts.
  • We fixed an issue with HTTP caching that interferes with kiosk mode targeting Azure AD groups.
  • We have resolved an issue that occurs when a Volume Shadow Copy Service (VSS) snapshot is raised on virtual machines (VM) that contain Resilient File System (ReFS) volumes. The triggered VSS snapshot fails with a timeout and prevents access to the ReFS volume for 30 minutes.
  • Fixed an issue where Event 642 of Extensible Storage Engine Technology (ESENT) was logged incorrectly in the application event log.
  • We fixed an issue with administrative template settings that you configure with a GPO. If you change the value of the policy settings to NOT CONFIGURED, the system does not remove the previous settings. This problem is most pre-per-home with roaming user profiles.
  • we have fixed an issue that can cause a deadlock in windows virtual desktop if a user disconnects before a driver is fully loaded
  • We’ve fixed an issue where the Extract All option doesn’t appear in the context menu when you right-click an online-only ZIP file.
  • We have updated the process of signing in to online speech recognition. If you are already signed in, you will see a message asking you to review the new settings. If you choose not to make your voice data available for human verification, you can still use online speech recognition. The new settings include a button to turn on online speech recognition and another button to turn on the collection of your voice clips. When you turn on the collection of your voice clips, you can turn them off at any time using the same button on the new settings page.
  • We fixed an issue that prevents the Start menu, Cortana, and tiles pinned to the taskbar from opening. This problem occurs when an administrator copies an existing profile that has the Mandatory Profile check box selected.

Download: X86- KB4598291.Rev.2
Download: X64- KB4598291.Rev.2
Download: arm- KB4598291.Rev.2