Reminder March 12 and April 9 were the last two Delta updates for Windows 10, version 1709. Security and quality updates will continue to be available via the express and full cumulative update packages. For more information on this change please visit our blog.
Reminder Windows 10, version 1709, reached end of service on April 9, 2019 for devices running Windows 10 Home, Pro, Pro for Workstation, and IoT Core editions. These devices will no longer receive monthly security and quality updates that contain protection from the latest security threats. To continue receiving security and quality updates, Microsoft recommends updating to the latest version of Windows 10.
IMPORTANT Windows 10 Enterprise, Education, and IoT Enterprise editions will continue to receive servicing at no cost per the lifecycle announcement on October 2018.
ePub support ended in Microsoft Edge Microsoft Edge has ended support for e-books that use the .epub file extension. For more information, see Download an ePub app to keep reading e-books.
For more information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following article.
This security update includes quality improvements. Key changes include:
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.
Devices using a manual or auto-configured proxy, especially with a virtual private network (VPN), might show limited or no internet connection status in the Network Connectivity Status Indicator (NCSI) in the notification area. This might happen when connected to or disconnected from a VPN or after changing the state between the two. Devices with this issue might also have issues reaching the internet using applications that use WinHTTP or WinInet. Examples of apps that might be affected on devices in this state include, but are not limited to, Microsoft Teams, Microsoft Office, Microsoft Office 365, Microsoft Outlook, Internet Explorer 11, and some versions of Microsoft Edge.| This issue is resolved in KB4554342.
Devices on a domain might be unable to install apps published using a Group Policy Object (GPO). This issue only affects app installations that use .msi files. It does not affect any other installation methods, such as from the Microsoft Store.| This issue is resolved in KB4556812.
Before installing this update Microsoft strongly recommends you install
the latest servicing stack update (SSU) for your operating system before
installing the latest cumulative update (LCU). SSUs improve the reliability of
the update process to mitigate potential issues while installing the LCU and
applying Microsoft security fixes. For general information about SSUs, see
Servicing stack updates and Servicing Stack
Updates (SSU): Frequently Asked Questions.If you are using Windows
Update, the latest SSU (KB4541731)
will be offered to you automatically. To get the standalone package for the
latest SSU, search for it in the Microsoft Update
Catalog. Install this
update Release Channel| Available| Next Step
Windows Update and Microsoft Update| Yes| None. This update will be downloaded and installed automatically from Windows Update.
Microsoft Update Catalog| Yes| To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)| Yes| This update will automatically sync with WSUS if you configure Products and Classifications as follows: Product : Windows 10 Classification : Security Updates
File information For a list of the files that are provided in this update, download the file information for cumulative update 4540681.