Microsoft has released new security updates (Patch Tuesday for September 2021) for Windows 10 Operating system. As part of the September 2021 patch update, Windows 10 KB5005565 is available for versions 21H1, 20H2, and 2004 that brings to Build 19043.1237, 19042.1237, and Build 19041.1237. Also, there is a new update KB5005566 for Windows 10 version 1909 bumps OS build 18363.1801.
Like previous Patch Tuesday releases, this Windows 10 update KB5005565 doesn’t come with any new features. Rather, the focus is on security, reliability improvements, and fixes across the board.
Download Windows 10 KB5005565
Since Microsoft patch updates are mandatory updates, Windows 10 KB5005565 download and install automatically on devices running the latest Windows 10 version 21H1, 20H2, and 2004. Once installed, you will need to restart the system for the changes to take effect.
To install this update using Windows Update, follow the steps below:
- Open Settings using windows key + I.
- Click Update & Security then Windows Update.
- In the right-hand pane, click on the Check for updates button.
Well If you are looking for the latest Windows 10 version 21H1 ISO click here.
As usual, the patch can be installed from the Update Catalog as well here Windows 10 KB5005565 Offline download links.
- KB5005565 — 2021-09 Cumulative Update for Windows 10 Version 21H1, 21H1 and 2004.
- locate the patch next to the correct edition and version of the operating system.
- To install the update, simply run the downloaded MSU file and Windows will automatically install the cumulative update.
Windows 10 KB5005565 Changelog
The latest patch update KB5005565 for Windows 10 version 21H1 addresses an issue that causes PowerShell to create an infinite number of child directories.
This issue occurs when you use the PowerShell Move-Item command to move a directory to one of its children. As a result, the volume fills up and the system stops responding.
- Addresses a security bug known as MSHTML (CVE-2021-40444)
- There are security fixes and improvements for Bluetooth and audio issues
- Microsoft has also resolved an issue that could block headsets if you connect the audio devices using USB and you’ve third-party drivers.
- The update also includes the changes from the non-security update KB5005101 from 9/1/2021:
You can read the complete changelog, listed Microsoft support site here.
- Some devices, created using custom offline media or ISO images, may have Edge Legacy removed but not replaced by the new Edge. Microsoft has a workaround for this.
- After installing this update some devices may fail to install new updates, with error message, “PSFX_E_MATCHING_BINARY_MISSING”.
Uninstall Windows 10 KB5005565
If installing KB5005565 causing issues on your device you can uninstall the update to revert the changes.
Uninstall KB5005565 using the Windows Update History tool
- Go to Windows Settings (Windows key + i) –> Update & Security –> Windows Update.
- From the right-hand pane, click on View Update History.
- Now click on Uninstall updates.
- Select Update for Microsoft Windows (KB5005565) and press the Uninstall button.
Uninstall KB5005565 using command-line
Another quick way to uninstall this update is by using the command prompt. Here are the commands:
- Open Command Prompt (Run –> cmd)
- Run the following command:
wmic qfe list brief /format:table
- This will show all the updates installed on the computer. Make sure KB5005565 is on the list.
- To uninstall the update, run the following command
wusa /uninstall /kb:KB5005565
The system needs to be restarted after uninstalling the update.
Windows 10 KB5005566
Installing KB5005566 brings up Windows 10 Build 18363.1801 and addresses an issue that causes PowerShell to create an infinite number of child directories.
Resolved a bug that could prevent Bluetooth headsets from working.
Fixed an issue that could block headsets if you connect the audio devices using USB and you’ve third-party drivers.
Updates security for your Windows operating system.
The update also includes the changes from the non-security update KB5004293 from 07/29/21:
Microsoft is not currently aware of any issues with this update.
Read the complete changelog Microsoft support site here.
Microsoft has also announced KB5005568 for devices still running, Windows 10 version 1809 that addresses a possible elevation of privilege vulnerability in the win32k component.
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