- KB4551853 – 2020-05 Cumulative Update for Windows Server 2019 for x64-based Systems
- KB4556813 – 2020-05 Cumulative Update for Windows Server 2016 for x64-based Systems
- KB4556840 – 2020-05 Security Monthly Quality Rollup for Windows Server 2012 for x64-based Systems
- KB4556846 – 2020-05 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems
Impacted Products:
- Microsoft Windows
- Microsoft Edge (EdgeHTML-based)
- Microsoft Edge (Chromium-based)
- Internet Explorer
- Microsoft Office and Microsoft Office Services and Web Apps
- Windows Defender
- Visual Studio
- Microsoft Dynamics
- .NET Framework
- .NET Core
Please note the following information regarding the security updates:
- For information regarding enabling Windows 10, version 1909 features, please see Windows 10, version 1909 delivery options. Note that Windows 10, versions 1903 and 1909 share a common core operating system with an identical set of system files. They will also share the same security update KBs.
- Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog.
- For information on lifecycle and support dates for Windows 10 operating systems, please see Windows Lifecycle Facts Sheet.
- A list of the latest servicing stack updates for each operating system can be found in ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update.
- Updates for Windows RT 8.1 and Microsoft Office RT software are only available via Windows Update.
- In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.
- Customers running Windows 7, Windows Server 2008 R2, or Windows Server 2008 need to purchase the Extended Security Update to continue receiving security updates. See 4522133 for more information.
Known Issues:
KB4551853 Applies to: Windows 10 version 1809 all editions; Windows Server version 1809; Windows Server 2019 all editions
https://support.microsoft.com/en-us/help/4551853/windows-10-update-kb4551853
Symptoms:
After installing KB4493509, devices with some Asian language packs installed may receive the error, “0x800f0982 – PSFX_E_MATCHING_COMPONENT_NOT_FOUND.”
Workaround:
- Uninstall and reinstall any recently added language packs. For instructions, see Manage the input and display language settings in Windows 10.
- Select Check for Updates and install the April 2019 Cumulative Update. For instructions, see Update Windows 10.
Note If reinstalling the language pack does not mitigate the issue, reset your PC as follows:
- Go to the Settings app > Recovery.
- Select Get Started under the Reset this PC recovery option.
- Select Keep my Files.
Microsoft is working on a resolution and will provide an update in an upcoming release.
KB4556813 Applies to: Windows 10 version 1607 all editions; Windows Server 2016
https://support.microsoft.com/en-us/help/4556813/windows-10-update-kb4556813
Symptoms:
After installing KB4467684, the cluster service may fail to start with the error “2245 (NERR_PasswordTooShort)” if the group policy “Minimum Password Length” is configured with greater than 14 characters.
Workaround:
Set the domain default “Minimum Password Length” policy to less than or equal to 14 characters.
Microsoft is working on a resolution and will provide an update in an upcoming release.
KB4556836 Applies to: Windows 7 Service Pack 1; Windows Server 2008 R2 Service Pack 1; Windows Embedded Standard 7 Service Pack 1; Windows Embedded POSReady 7; Windows Thin PC
https://support.microsoft.com/en-us/help/4556836/windows-7-update-kb4556836
Symptoms:
After installing this update and restarting your device, you might receive the error, “Failure to configure Windows updates. Reverting Changes. Do not turn off your computer,” and the update might show as Failed in Update History.
Workaround:
This is expected in the following circumstances:
- If you are installing this update on a device that is running an edition that is not supported for ESU. For a complete list of which editions are supported, see KB4497181.
- If you do not have an ESU MAK add-on key installed and activated.
If you have purchased an ESU key and have encountered this issue, please verify you have applied all prerequisites and that your key is activated. For information on activation, please see this blog post. For information on the prerequisites, see the “How to get this update” section of this article.
KB4556843 Applies to: Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1; Windows Embedded Standard 7 Service Pack 1; Windows Embedded POSReady 7; Windows Thin PC
https://support.microsoft.com/en-us/help/4556843/windows-7-update-kb4556843
Symptoms:
After installing this update and restarting your device, you might receive the error, “Failure to configure Windows updates. Reverting Changes. Do not turn off your computer,” and the update might show as Failed in Update History.
Workaround:
This is expected in the following circumstances:
- If you are installing this update on a device that is running an edition that is not supported for ESU. For a complete list of which editions are supported, see KB4497181.
- If you do not have an ESU MAK add-on key installed and activated.
If you have purchased an ESU key and have encountered this issue, please verify you have applied all prerequisites and that your key is activated. For information on activation, please see this blog post. For information on the prerequisites, see the “How to get this update” section of this article.
KB4556854 Applies to: Windows Server 2008 Service Pack 2
https://support.microsoft.com/en-us/help/4556854/windows-server-2008-update-kb4556854
Symptoms:
After installing this update and restarting your device, you might receive the error, “Failure to configure Windows updates. Reverting Changes. Do not turn off your computer,” and the update might show as Failed in Update History.
Workaround:
This is expected in the following circumstances:
- If you are installing this update on a device that is running an edition that is not supported for ESU. For a complete list of which editions are supported, see KB4497181.
- If you do not have an ESU MAK add-on key installed and activated.
If you have purchased an ESU key and have encountered this issue, please verify you have applied all prerequisites and that your key is activated. For information on activation, please see this blog post. For information on the prerequisites, see the “How to get this update” section of this article.
KB4556860 Applies to: Windows Server 2008 Service Pack 2
https://support.microsoft.com/en-us/help/4556860/windows-server-2008-update-kb4556860
Symptoms:
After installing this update and restarting your device, you might receive the error, “Failure to configure Windows updates. Reverting Changes. Do not turn off your computer,” and the update might show as Failed in Update History.
Workaround:
This is expected in the following circumstances:
- If you are installing this update on a device that is running an edition that is not supported for ESU. For a complete list of which editions are supported, see KB4497181.
- If you do not have an ESU MAK add-on key installed and activated.
If you have purchased an ESU key and have encountered this issue, please verify you have applied all prerequisites and that your key is activated. For information on activation, please see this blog post. For information on the prerequisites, see the “How to get and install this update” section of this article.