Download KB4577671 Windows 10 Cumulative Update| Patch Tuesday, October 2020

Microsoft starts rolling out a new Windows 10 patch update that is packed with a long list of bug fixes. Windows 10 update KB4577671 is available for Windows 10 version 1909 and 1903. Download KB4577671 offline installer in order to work seamlessly and avoid annoying bugs.

Patch Tuesday, October 2020 addresses the security and non-security issues. With this latest Patch, Windows 10 version 1903 and 1909 bump to OS Builds 18362.1139 and 18363.1139 respectively.

Windows 10 update

The users can update Windows 10 using KB4577671 offline installer or Windows Update and patch the bugs on time. These latest Windows 10 updates KB4577671 is released as a Patch Tuesday update. Direct download links for Windows 10 KB4577671 offline installer is uploaded on Microsoft Update Catalog and available in this blog post.

Microsoft has also revealed some of the known issues along with their workarounds. You can go through the below-given changelog of KB4577671 update and proceed for the installation.

Windows 10 Update KB4577671 (OS Builds 18362.1139 and 18363.1139) Highlights

  • Updates to improve security when using Microsoft Office products.
  • Updates for verifying usernames and passwords.
  • Updates to improve security when Windows performs basic operations.
  • Updates for storing and managing files.

Improvements and Fixes Included in KB4577671 Update for Windows 10, version 1909

This security update includes quality improvements. Key changes include:

  • This build includes all the improvements from Windows 10, version 1903.
  • No additional issues were documented for this release.

Improvements and Fixes Included in KB4577671 Update for Windows 10, version 1903

Note: This release also contains updates for Microsoft HoloLens (OS Build 18362.1081) released October 13, 2020. Microsoft will release an update directly to the Windows Update Client to improve Windows Update reliability on Microsoft HoloLens that have not updated to this most recent OS Build.

This security update includes quality improvements. Key changes include:

  • Addresses an issue with a possible elevation of privilege in win32k.
  • Addresses an issue with the Group Policy service that might recursively delete critical files in alphabetic order from %systemroot%\system32. This issue occurs when a policy has been configured to delete cached profiles. These file deletions might cause stop error “0x5A (CRITICAL_SERVICE_FAILED)” boot failures.
  • Addresses an issue with creating null ports using the user interface.
  • Security updates to Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Shell, Windows Cloud Infrastructure, Windows Fundamentals, Windows Authentication, Windows Virtualization, Windows Kernel, and Windows Storage and Filesystems.

You may like: Windows 10 Offline Updates Released in 2020 – Official Links

Download KB4577671 for Windows 10 Version 1909 Cumulative Update Standalone Installers

  • KB4577671 Standalone installer for 32-bit Windows – Download (Size: 216 MB)
  • KB4577671 Offline Installer for 64-bit Windows – Download (Size: 411 MB)

Download KB4577671 for Windows 10 Version 1903 Cumulative Update Standalone Installers

  • KB4577671 Standalone installer for 32-bit Windows – Download (Size: 216 MB)
  • KB4577671 Offline Installer for 64-bit Windows – Download (Size: 411 MB)

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