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Download KB4580364 Offline Installer for Windows 10 20H2 & 2004

KB4580364 is a cumulative update for Windows 10 20H2 or October 2020 version. Here’re the download links for the KB4580364 offline installer.

Out of the regular schedule, Microsoft released the KB4580364 update for both Windows 10 v20H2 and v2004 editions. KB4580364 is an optional update. As always, the update is packed with important fixes to various modules of Windows 10. Those fixes include but not limited to Internet Explorer, Microsoft Edge, Dynamic Data Exchange, Virtual Desktop, Event tracking, Diskpart utility, VPN, Remote Access Service, etc. All in all, KB4580364 is a pretty event full update with a lot of things going on.

Just like with any other, Windows 10 will automatically install the update by default. Alternatively, you can also manually trigger the update by clicking on the “Check for updates” button on the Windows Update page. If the automatic updates are paused or to install the update in an offline machine, download the KB4580364 offline uninstaller using the official links below.

Download KB4580364 Offline Installer

To make things easier for you, I found the direct download links for KB4580364 for both Windows 10 32-bit and 64-bit systems. Depending on your system type, download the update using the below links and install it like any other Windows software. After installing, restart the system and you are good to go.

For v20H2:

KB4580364 x84 (32-bit) offline installer (download size: 114.8 MB)

KB4580364 x64 (64-bit) offline installer (download size: 349.8 MB)

For v2004:

KB4580364 x86 (32-bit) offline installer (download size: 114.8 MB)

KB4580364 x64 (64-bit) offline installer (download size: 349.8 MB)

If you want KB4580364 download links for Windows Server, ARM64 based systems, or some other version then go to the Microsoft update catalog website to find the appropriate links. All you have to do is click on the Download button next to the appropriate version.

KB4580364 Changelog

  • Addresses an issue with using Group Policy Preferences to configure the homepage in Internet Explorer.
  • Allows administrators to use a Group Policy to enable Save Target As for users in Microsoft Edge IE Mode.
  • Addresses an issue with untrusted URL navigations from Internet Explorer 11 by opening them in Microsoft Defender Application Guard using Microsoft Edge.
  • Addresses an issue that occurs when using the full suite of developer tools in Microsoft Edge for remote debugging on a Windows 10 device.
  • Addresses an issue that displays nothing on the screen for five minutes or more during the Remote Desktop Protocol (RDP) session.
  • Addresses an issue that prevents certain Windows Virtual Desktop (WVD) users from searching for files using File Explorer.
  • Addresses an issue that causes a device to stop responding after you have been using a pen for several hours.
  • Addresses an issue that causes an application to stop responding temporarily, which causes extra z-order operations that affect the Window.Topmost property of a window.
  • Addresses an issue that might cause Dynamic Data Exchange (DDE) apps to stop working.
  • Addresses an issue that occurs when you first sign in to an account or unlock an existing user session using Remote Desktop Services (RDS). If you enter an incorrect password, the current keyboard layout changes unexpectedly to the system default keyboard layout. This keyboard layout change might cause additional attempts to sign in to fail or lead to account lockouts in domains with low account lockout thresholds.
  • Addresses an issue that displays the incorrect CPU frequency for certain processors.
  • 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 that randomly changes the time offset of the time format returned by the command WMIC.exe OS Get localdatetime/ value.
  • Addresses an issue that prevents Microsoft User Experience Virtualization (UE-V) from assigning the Microsoft Outlook Signatures.
  • Addresses an issue that prevents Hybrid Azure Active Directory joined devices from updating portal information when a device name or Windows version changes.
  • Addresses an issue that might prevent the Smart Cards for Windows service from starting.
  • Adds a new Microsoft Event Tracing for Windows (ETW) provider named “Microsoft-Antimalware-UacScan”. This ETW provider reports the details of the context for each User Account Control (UAC) request in the ETW provider manifest.
  • Addresses an issue with virtual private network (VPN) connections that use Secured Password (EAP-MSCHAP v2) for authentication and have enabled the “Automatically use my Windows logon user name and password” property. When you connect to this type of VPN, an authentication dialog box incorrectly prompts for your credentials.
  • Displays Recovery Partitions in the diskpart utility.
  • Addresses an issue that causes stop error 0xd1 in msiscsi.sys. This issue occurs when moving certain arrays from one cluster node to another.
  • Addresses an issue that causes the IAutomaticUpdatesResults::get_LastInstallationSuccessDate method to return 1601/01/01 when there are no active updates.
  • Adds support for the Transport Layer Security (TLS) 1.1 and 1.2 protocols when connecting to SQL Server using the data providers in Windows Defender Application Control (WDAC).
  • Addresses an issue with SQL Server that might cause performance issues if you configure a Linked Server provider to load out-of-process.
  • Addresses an issue that might degrade Windows performance and prevent the LanmanServer service from starting when third-party software uses LanmanServer custom file system controls (FSCTL).
  • Addresses an issue with deduplication that causes long wait times on Resilient File System (ReFS) Cluster Shared Volumes (CSV).
  • Addresses an issue that might prevent some applications from behaving correctly. This occurs when you publish them as Remote Application Integrated Locally (RAIL) applications using RDS and change the docking for an AppBar window.
  • Addresses an issue with a deadlock in the Transmission Control Protocol/Internet Protocol (TCPIP) driver that causes the operating system to stop working or stop responding.
  • Addresses an issue that causes the Routing and Remote Access Service (RRAS) to stop responding for new connections. However, RRAS continues working for existing connections.
  • Addresses an issue that causes the RRAS administrator Microsoft Management Console (MMC) to stop responding randomly when you are performing administrative tasks or at startup.
  • Addresses an issue with starting Windows Subsystem for Linux 2 (WSL2) on ARM64 devices that occurs after installing KB4579311.

That is it.

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