Windows 10: Cumulative patch for the May 2021 update

Microsoft updates Windows 10 at irregular intervals with cumulative updates. These contain all security updates and numerous bug fixes for the latest Windows 10 version.

The package offered for download on this page is suitable for the Windows 10 May 2021 update (version 21H1) and increases the version numbers for both the 32-bit and the 64-bit edition after installation 19043.1288. If you want to know which version of Windows 10 is currently running on your device, go to the start menu and then select Settings> System> About.


During the installation, only those updates are installed that are not yet available or not up to date. Microsoft informs with a entry About the most recently made changes and renewed files. As usual with system updates, a restart is necessary after the installation.

Do you want to know what changes Microsoft has made to Windows 10 with the last major update? Read our article: Windows 10 May Update: Everything you need to know now.

Microsoft officially starts the Windows 10 October 2020 update

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