Microsoft has released new security updates (patch Tuesday for June 2021) for Windows 10 Operating system. As part of the June 2021 patch update, Windows 10 KB5003637 available for versions 21H1, 20H2 and 2004 that brings to Build 19043.1052, 19042.1052 and Build 19041.1052. Also, there is a new update KB5003635 for Windows 10 version 1909 bumps OS build 18363.1621.
Like previous Patch Tuesday releases, this Windows 10 update KB5003637 doesn’t come with any new features. Rather, the focus is on security, reliability improvements and fixes across the board.
Download Windows 10 KB5003637
Since Microsoft patch updates are mandatory updates, Windows 10 KB5003637 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 KB5003637 Offline download links.
- KB5003637 — 2021-06 Cumulative Update for Windows 10 Version 21H1, 21H1 and 2004.
To install the update, simply run the downloaded MSU file and Windows will automatically install the cumulative update.
Windows 10 KB5003637 Changelog
The latest patch update KB5003637 for Windows 10 version 21H1 comes with security improvements when Windows performs basic operations and Windows OLE (compound documents) security.
Also Update security verifying usernames and passwords and when using input devices such as a mouse, keyboard, or a pen. Microsoft says it also includes updates for storing and managing files.
Security updates to Windows App Platform and Frameworks, the Windows Kernel, Windows Media, the Microsoft Scripting Engine, and the Windows Silicon Platform.
Security updates to the Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Input and Composition, Windows Management, Windows Cloud Infrastructure, Windows Authentication, Windows Fundamentals, Windows Virtualization, Windows Kernel, Windows HTML Platform, and Windows Storage and Filesystems.
You can read the complete changelog, listed Microsoft support site here.
System and user certificates may be lost when updating from Windows 10 version 1809 or later to a newer version of Windows 10. This happens mainly when managed devices are updated using outdated bundles or media according to Microsoft. Devices that use Windows Update or Windows Update for Business are not impacted.
Microsoft suggests Go back to the previous version of Windows to fix the issue.
- Issue with the Microsoft Japanese Input Method Editor and Kanji / Furigana characters.
- 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, 5.1 Dolby Digital audio may play containing a high-pitched noise or squeak in certain apps when using certain audio devices and Windows settings.
Uninstall Windows 10 KB5003637
If installing KB5003637 causing issues on your device you can uninstall the update to revert the changes.
Uninstall KB5003637 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 (KB5003637) and press the Uninstall button.
Uninstall KB5003637 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 KB5003637 is on the list.
- To uninstall the update, run the following command
wusa /uninstall /kb:KB5003637
The system needs to be restarted after uninstalling the update.
Windows 10 KB5003635
Also, there is a new update KB5003635 available for PCs with Windows 10 version 1909 aka November 2019 Update.
Installing KB5003635 brings up Windows 10 Build 18362.1621 and resolved security issues when Windows performs basic operations and Windows OLE (compound documents) security.
Improve securty when verifying usernames and passwords and when using input devices such as a mouse, keyboard, or a pen. Microsoft says it also includes updates for storing and managing files.
Addresses an issue with an inconsistent shutdown during Windows Update that damages the Windows Management Instrumentation (WMI) repository.
Addresses an issue that might prevent you from signing in to some Microsoft 365 desktop client apps after installing the May 11, 2021, or later update and restarting your device
Security updates Windows App Platform and Frameworks, the Windows Kernel, the Microsoft Scripting Engine, and the Windows Silicon Platform.
- System and user certificates may be lost when updating from Windows 10 version 1809 or later to a newer version of Windows 10. This happens mainly when managed devices are updated using outdated bundles or media according to Microsoft. Devices that use Windows Update or Windows Update for Business are not impacted. Microsoft suggests rollback to the previous version of Windows to fix the issue.
Read the complete changelog Microsoft support site here.
Microsoft has also announced KB5003646 for devices still running, Windows 10 version 1809 that addresses a possible elevation of privilege vulnerability in the win32k component.
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