It is the second Tuesday of the month and that means that it is Patch Day for Windows and other Microsoft products. The Microsoft Windows July 2020 Patch Day brings security updates for all supported client and server versions of Microsoft"s Windows operating system as well as other company products such as Microsoft Edge.
Our monthly overview provides you with detailed information about the updates that Microsoft released today.
You can download an Excel spreadsheet that contains a list of released security updates, and check out the updates released for any version of Windows. The overview includes download links, links to resources on Microsoft"s support website, and known issues.
If you have missed out last month"s Patch Day overview, check it out here.
Click on the following link to download the July 2020 spreadsheet to your system. It lists released security updates of the July 2020 Patch Day. Click on the following link to start the download: microsoft-windows-updates-july-2020
Executive SummaryWindows Server products
Other Microsoft Products
Windows 7 SP1 and Windows Server 2008 R2
Fixes and improvements
Windows 8.1 and Server 2012 R2
Fixes and improvements
Windows 10 version 1803
Fixes and improvements
Windows 10 version 1809
Fixes and improvements
Windows 10 version 1903 and 1909
Fixes and improvements
Windows 10 version 2004
Fixes and improvements
Other security updates
KB4565479 -- 2020-07 Cumulative Security Update for Internet Explorer
KB4565529 -- 2020-07 Security Only Quality Update for Windows Server 2008
KB4565535 -- 2020-07 Security Only Quality Update for Windows Embedded 8 Standard and Windows Server 2012
KB4565536 -- 2020-07 Security Monthly Quality Rollup for Windows Server 2008
KB4565537 -- 2020-07 Security Monthly Quality Rollup for Windows Embedded 8 Standard and Windows Server 2012
KB4565513 -- 2020-07 Cumulative Update for Windows 10 Version 1507
KB4565499 -- 2020-07 Cumulative Update for Windows 10 Version 1703
KB4565508 -- 2020-07 Cumulative Update for Windows 10 Version 1709
.NET Framework
KB4565577 -- 2020-07 Security Only Update for .NET Framework 3.5 for Windows Embedded 8 Standard and Windows Server 2012
KB4565578 -- 2020-07 Security Only Update for .NET Framework 2.0, 3.0 for Windows Server 2008
KB4565579 -- 2020-07 Security Only Update for .NET Framework 3.5.1 for Windows Embedded Standard 7, Windows 7, and Windows Server 2008 R2
KB4565580 -- 2020-07 Security Only Update for .NET Framework 3.5 for Windows 8.1 and Windows Server 2012 R2
KB4565581 -- 2020-07 Security Only Update for .NET Framework 4.5.2 for Windows 8.1 and Windows Server 2012 R2
KB4565582 -- 2020-07 Security Only Update for .NET Framework 4.5.2 for Windows Embedded 8 Standard and Windows Server 2012
KB4565583 -- 2020-07 Security Only Update for .NET Framework 4.5.2 for Windows Embedded Standard 7, Windows 7, Windows Server 2008 R2, and Windows Server 2008
KB4565584 -- 2020-07 Security Only Update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Embedded 8 Standard and Windows Server 2012
KB4565585 -- 2020-07 Security Only Update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows 8.1 and Windows Server 2012 R2
KB4565586 -- 2020-07 Security Only Update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Embedded Standard 7, Windows 7, Windows Server 2008 R2, and Windows Server 2008
KB4565587 -- 2020-07 Security Only Update for .NET Framework 4.8 for Windows Embedded 8 Standard and Windows Server 2012
KB4565588 -- 2020-07 Security Only Update for .NET Framework 4.8 for Windows 8.1 and Windows Server 2012 R2
KB4565589 -- 2020-07 Security Only Update for .NET Framework 4.8 for Windows Embedded Standard 7, Windows 7, and Windows Server 2008 R2
KB4565610 -- 2020-07 Security and Quality Rollup for .NET Framework 3.5 for Windows Embedded 8 Standard and Windows Server 2012
KB4565611 -- 2020-07 Security and Quality Rollup for .NET Framework 2.0, 3.0 for Windows Server 2008
KB4565612 -- 2020-07 Security and Quality Rollup for .NET Framework 3.5.1 for Windows Embedded Standard 7, Windows 7, and Windows Server 2008 R2
KB4565613 -- 2020-07 Security and Quality Rollup for .NET Framework 3.5 for Windows 8.1 and Windows Server 2012 R
KB4565614 -- 2020-07 Security and Quality Rollup for .NET Framework 4.5.2 for Windows 8.1 and Windows Server 2012 R2
KB4565615 -- 2020-07 Security and Quality Rollup for .NET Framework 4.5.2 for Windows Embedded 8 Standard and Windows Server 2012
KB4565616 -- 2020-07 Security and Quality Rollup for .NET Framework 4.5.2 for Windows Embedded Standard 7, Windows 7, Windows Server 2008 R2, and Windows Server 2008
KB4565621 -- 2020-07 Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Embedded 8 Standard and Windows Server 2012
KB4565622 -- 2020-07 Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows 8.1 and Windows Server 2012 R2
KB4565623 -- 2020-07 Security and Quality Rollup for .NET Framework 4.6 for Windows Embedded Standard 7, Windows 7, Windows Server 2008 R2, and Windows Server 2008
KB4565634 -- 2020-07 Security and Quality Rollup for .NET Framework 4.8 for Windows Embedded 8 Standard and Windows Server 2012
KB4565635 -- 2020-07 Security and Quality Rollup for .NET Framework 4.8 for Windows 8.1 and Windows Server 2012 R2
KB4565636 -- 2020-07 Security and Quality Rollup for .NET Framework 4.8 for Windows Embedded Standard 7 and Windows Server 2008 R2
KB4566466 -- 2020-07 Security Only Update for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded Standard 7, Windows 7, and Windows Server 2008 R2
KB4566467 -- 2020-07 Security Only Update for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 8 Standard and Windows Server 2012
KB4566468 -- 2020-07 Security Only Update for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1 and Windows Server 2012 R2
KB4566469 -- 2020-07 Security Only Update for .NET Framework 2.0, 3.0, 4.5.2, 4.6 for Windows Server 2008
KB4566517 -- 2020-07 Security and Quality Rollup for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded Standard 7, Windows 7, and Windows Server 2008 R2
KB4566518 -- 2020-07 Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 8 Standard and Windows Server 2012
KB4566519 -- 2020-07 Security and Quality Rollup for .NET Framework 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 8.1 and Windows Server 2012 R2
KB4566520 -- 2020-07 Security and Quality Rollup for .NET Framework 2.0, 3.0, 4.5.2, 4.6 for Windows Server 2008
KB4565625 -- 2020-07 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows Server 2019 and Windows 10 Version 1809
KB4565627 -- 2020-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server, version 2004 and Windows 10 Version 2004
KB4565628 -- 2020-07 Cumulative Update for .NET Framework 4.8 for Windows Server 2016 and Windows 10 Version 1607
KB4565629 -- 2020-07 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1703
KB4565630 -- 2020-07 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1709
KB4565631 -- 2020-07 Cumulative Update for .NET Framework 4.8 for Windows 10 Version 1803 and Windows Server 2016 (1803)
KB4565632 -- 2020-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2019 and Windows 10 Version 1809
KB4565633 -- 2020-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server, version 1909, Windows 10 Version 1909, Windows Server 2019 (1903), and Windows 10 Version 1903
KB4566516 -- 2020-07 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows Server 2019 and Windows 10 Version 1809
Servicing Stack Updates
KB4558997 -- 2020-07 Servicing Stack Update for Windows Server 2019 and Windows 10 Version 1809
KB4565353 -- 2020-07 Servicing Stack Update for Windows Server 2008
KB4565354 -- 2020-07 Servicing Stack Update for Windows Embedded Standard 7, Windows 7, and Windows Server 2008 R2
KB4565551 -- 2020-07 Servicing Stack Update for Windows 10 Version 1703
KB4565552 -- 2020-07 Servicing Stack Update for Windows 10 Version 1803
KB4565553 -- 2020-07 Servicing Stack Update for Windows 10 Version 1709
KB4565554 -- 2020-07 Servicing Stack Update for Windows Server, version 2004, Windows Server, version 1909, Windows 10 Version 1909, Windows Server 2019 (1903), and Windows 10 Version 1903
KB4565912 -- 2020-07 Servicing Stack Update for Windows Server 2016 and Windows 10 Version 1607
KB4566425 -- 2020-07 Servicing Stack Update for Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2
KB4566426 -- 2020-07 Servicing Stack Update for Windows Embedded 8 Standard and Windows Server 2012
KB4565911 -- 2020-07 Servicing Stack Update for Windows 10 Version 1507
KB4566785 -- 2020-07 Servicing Stack Update for Windows Server, version 2004 and Windows 10 Version 2004
Known IssuesWindows 7 SP1 and Windows Server 2008 R2
Windows 8.1 and Windows Server 2012 R2
Windows 10 version 1809
Windows 10 version 1903 and 1909
Windows 10 version 2004
ADV200008 | Microsoft Guidance for Enabling Request Smuggling Filter on IIS Servers
Non-security related updatesMicrosoft Office UpdatesYou find Office update information here.
How to download and install the July 2020 security updatesSecurity updates are released via Windows Update and other update management systems such as WSUS. Administrators may download updates manually as well to install them directly.
Note: We recommend that systems are backed up fully before updates are installed.
The following instructions guide you through the process of checking for updates via Windows Update:
Windows 7 and Server 2008 R2
Windows 8.1 and Windows Server 2012 R2
Windows 10 (version 1803)
Windows 10 (version 1809)
Windows 10 (version 1903)
Windows 10 (version 1909)
Windows 10 (version 2004)