Download And Install KB4571744 Windows 10 Cumulative Update For September 2020 [Version 2004]

Microsoft has released a new beta cumulative update KB4571744 for Windows 10 Version 2004. This update is a part of the Microsoft Windows Patch Tuesday for September 2020, which shall be automatically installed on all registered devices through Windows Update. However, as this is a beta release, it is not a mandatory update and can be installed as an optional extra.

After installing the KB4571744 cumulative update, the build number for Windows 10 Version 2004 will be 19041.488.

This update also sends data back to Microsoft so they can gather information on the update’s performance and make the necessary changes before the release of the actual stable update.

Let’s see what this update has to offer us and whether we should install it right now, or wait for the stable release.

What’s new in KB4571744

As this release is a preview, there are no release notes as of yet. This is a non-security update that addresses a series of glitches that needed fixing in Windows 10.

The highlights of this update are:

  • Fixed the issue to reduce the percentage of missing fonts.
  • Provides the ability to run Dolby Atmos for devices in 24-bit mode.
  • Fixed File Explorer sudden crash issue.
  • Fixed Microsoft applications to close unexpectedly when using different fonts issue.
  • Fixed blurry sign-in screen on Windows 10 issue.

Some of the improvements and fixes in KB4571744 are:

  • Addresses an issue with pinned add-ins in Microsoft Outlook that makes the application unresponsive.
  • Addresses an issue that prevents ActiveX content from loading.
  • Addresses an issue with the Start Menu and its tiles in Virtual Desktop Infrastructure (VDI).
  • Fixes an issue with Cortana Smart Lighting while shutting down the computer.
  • Addresses an issue that prevents applications from closing, even though they have been directed to close.
  • Addresses an issue that displays incorrect folder properties in File Explorer when the path is longer than MAX_PATH.

For more elaborate information on KB4571744, check out this Microsoft help page.

Install KB4571744 using Windows Update

The size of this update is around 336MB. However, it takes longer than usual to install this update. Therefore, it is recommended to download and install it when there is less traffic on your network, and the computer’s resources are less occupied.

It is recommended to update your Operating System before installing KB4571744, by installing all prerequisites.

Since the preview version is not a mandatory update, this needs to be installed manually.

  1. Navigate to the following:
    Start Menu –> Settings –> Update & Security –> View optional updates
  2. Now expand Other Updates and check the box next to the available 2020-08 Cumulative Update KB4571744.
  3. Now click on Download and Install.
    download and install

The update will begin to download and install, and should be completed shortly.

Download KB4571744 Offline installers

The update can also be installed on any computer having Windows 10 Version 2004 without having an internet connection. Download the offline installers below:

Download KB4566782 for Windows 10 Version 2004 64-bit [335.7 MB]

Download KB4566782 for Windows 10 Version 2004 32-bit [112.9 MB]

To download any other updates related to KB4571744, please check the Microsoft Catalog.

To install the update, simply run the downloaded MSU file and Windows will automatically install the cumulative update.

You can check out your current Windows build by going to Run and then type winver.

Issues related to KB4571744

Microsoft is aware and acknowledged that this update might have a few errors that still need some fixing-up. The users of Microsoft Input Method Editor (IME) might experience some problems while inputting text, or while viewing its results.

A similar problem was also experienced with August 2020 updates, but it seems that Microsoft has fixed it entirely by crashing the applications to input errors.

Some of the errors from KB4571744 have already been addressed, and Microsoft has shared their workarounds for the issues.

Uninstall KB4571744 cumulative update

If this update creates issues for your system, you can easily uninstall it using the following two ways:

Uninstall KB4571744 using Windows Update History tool

  1. Navigate to the following:
    Start Menu -> Settings –> Update & Security –> Windows Update.
  2. From the right-hand pane, click on View Update History.
  3. Now click on Uninstall updates.
  4. Select Update for Microsoft Windows (KB4571744) and press the Uninstall button.

Uninstall KB4571744 using command-line

You can also delete the update by entering several commands in the Command Prompt. Here is how:

  1. Open Command Prompt (Run –> cmd)
  2. Run the following command:
    wmic qfe list brief /format:table
  3. This will show all the updates installed on the computer. Make sure KB4566782 is on the list.
  4. To uninstall the update, run the following command
    wusa /uninstall /kb:4571744

Restart the computer once the update is uninstalled.

Cleanup after installing Windows Updates

If you want to save space after installing Windows updates, you can run the following commands:

dism.exe /Online /Cleanup-Image /AnalyzeComponentStore
dism.exe /Online /Cleanup-Image /StartComponentCleanup
Windows image cleanup

Also see:

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Subhan Zafar
Subhan holds a degree in Electrical Engineering and has completed several system and network certifications including Huwaei, Cisco and Microsoft certs. He mostly researches and writes about the Windows world.

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