Microsoft has released the sixth cumulative update of the year for Windows 10 in versions 21H1, 20H2 and 2004. The update is available through Windows Update, WSUS and Microsoft Catalog. The company also published download links for the offline installers of the KB5003637 update.
KB5003637 is about security fixes, but it also brings quality improvements.
As always, the build number depends on the version of Windows 10 you are using. For example, if you have upgraded to version 21H1, you will have Windows 10 Build 19043.1052 with quality enhancements, reduced memory usage, and taskbar feed support.
For those still using version 20H2 (October 2020 Update), their system will be upgraded to Windows 10 Build 19042.1052 after the update is applied.
If you check for updates today, you will see the following cumulative update:
2021-06 Cumulative Update for Windows 10 Version 21H1 for x64-based Systems (KB5003637)
2021-06 Cumulative Update for Windows 10 Version 20H2 for x64-based Systems (KB5003637)
Windows 10 KB5003637 Direct Download Links: 64-bit and 32-bit (x86).
If you can not update via Windows Update, just download the update from the links above. In the Update Catalog, find the version of Windows 10 installed on your computer and click the "Download" button.
If you do not know the version of Windows, open the Settings application and go to System> About. Down and you will see the version information you need.
We would suggest updating immediately due to security fixes, but we do not know what will happen to your computer. Windows are these, you never know….
It would be wise to wait a while to see if there is a problem with this update. We will monitor the issue and inform you.