KB4566782 updates Windows 10 2004 to OS Build 19041.450

Microsoft releases the August security-patch for Windows 10 version 2004 and the Insider 20H2. The KB4566782 cumulative update enhances the respective build versions of 20H1 and 20H2 to 19041.450 and 19042.450.

Apart from providing the security-updates to different Windows 10 services and components, this also fixes a persistent bug on UWP. The Chinese and Japanese IME-related issue is still there. See the complete list of latest cumulative update catalog.


KB4566782 Changelog

Here are the key highlights of the security-patch KB4566782 –

  • Improves the Security of Input devices, Storing, and managing files.
  • Upgrades security while performing basic operations on Windows 10.
  • Security Updates for Internet Explorer and the legacy version of Microsoft Edge.
  • Improves the security of Office Products.
  • Updates for verifying usernames and passwords.

Improvements and Fixes

The KB4566782 resolves a key issue along with upgrading the security of different Windows 10 components and services. 

  • This resolves a bug related to Universal Windows Platform (UWP) apps. Previously, the apps which don’t have the Enterprise Authentication capability simply allow single sign-on authentication. With the latest release of CVE-2020-1509, UWP apps will definitely prompt users to fill in credentials. 
  • The Security updates are for following components and services –
Security updates to the Microsoft Scripting Engine, Internet Explorer, Windows Graphics, 
Microsoft Graphics Component, Windows Kernel, Windows Input and Composition, Windows 
Media, Windows Shell, the Windows Wallet Service, Microsoft Edge Legacy, Windows Cloud 
Infrastructure, Windows Authentication, the Windows AI Platform, Windows Fundamentals, 
Windows Storage and Filesystems, Windows Update Stack, Windows File Server and 
Clustering, Windows Hybrid Storage Services, Windows App Platform and Frameworks, 
Microsoft JET Database Engine, and Windows SQL components.

Known bugs on this Release

Chinese and Japanese IMEs may not function properly on a few apps like – Microsoft Excel. As a result, users may find it difficult to drag items while using Mouse. 

Sol – As a workaround, you may visit KB4564002.

How to get this update

Make sure to first download and install the latest SSU i.e  (KB4570334) before proceeding to apply this cumulative update. This, in turn, ensures the update process completes successfully. You may get this patch from any of the below channels –

  • Windows Update Section – You will auto-receive a notification regarding this. If not, head over to the below path –

Settings UI (Win+I) > Update Security > Windows Updates > Check for Updates.

  • Update Catalog – Visit the Update catalog and download the Standalone package. Next, click Download thereafter the top link on the upcoming screen.
  • Via Windows Server Update Services (WSUS) – Don’t need to do anything, just make sure to sync your device with WSUS.

Source – Release note.