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Welcome to the overview for Microsoft's April 2020 Patch Day; Microsoft released security updates for all supported versions of the Windows operating system -- client and server -- as well as other company products such as Microsoft Office.

Our overview provides you with links and information that you may use to better understand the releases. It includes links to direct downloads, the list of known issues according to Microsoft, an overview of critical security issues, the operating system distribution of vulnerabilities, and more.

Feel free to check out the March 2020 Patch Day overview here.

Microsoft Windows Security Updates April 2020

You may download the following Excel spreadsheet to get a full list of all security updates that Microsoft released on the April 2020 Patch Day. Just click on the following link to download the spreadsheet to your system: microsoft-windows-security-updates-april-2020

Executive Summary

* Microsoft released security updates for all supported versions of Windows.

* Security updates are also available for Microsoft Edge, Internet Explorer, Microsoft Office, Windows Defender, Visual Studio, Microsoft Dynamics, Microsoft Apps for Android and Mac.

* New msi application installation issue for domain devices on some versions of Windows.
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