April 21, 2020—KB4550945 (OS Builds 18362.815 and 18363.815)

Is van toepassing op: Windows 10, version 1903, all editionsWindows Server version 1903Windows 10, version 1909, all editions

Highlights


  • Updates an issue that prevents certain apps from opening after you upgrade from a previous version of Windows, and a Bad Image error message appears. 
  • Updates in an issue that turns off notifications for devices that use a virtual private network (VPN) on a cellular network. 
  • Updates an issue that prevents you from resuming a Microsoft Xbox game on a Windows device after upgrading from a previous version of Windows. 
  • Updates an issue that causes a text box that contains multiple lines of text to stop responding in certain scenarios. 
  • Updates an issue that generates unexpected notifications when you change the default application settings. 
  • Updates an issue that causes Windows Update to stop responding when you check for updates. 
  • Updates an issue that fails to print content that is outside of the margins of a document.

Improvements and fixes


If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

Known issues in this update


Symptom Workaround
After installing this optional update, some devices might have licensing issues with apps and games installed from the Microsoft Store. On affected devices, apps might fail to open or close unexpectedly, premium content might be disabled, or you might receive an error message. This issue is resolved. Please note that it can take up to 24 hours for the issue to resolve on your device. If you are still encountering the issue, you might see the issue resolved after restarting your device. For enterprise-managed devices that have installed this update and encountered this issue, it can be resolved by installing and configuring a special Group Policy. To find out more about using Group Policies, see Group Policy Overview.
After installing this update on a Windows 10 device with a wireless wide area network (WWAN) LTE modem, reaching the internet might not be possible. However, the Network Connectivity Status Indicator (NCSI) in the notification area might still indicate that you are connected to the internet. This issue is resolved in KB4559004.

 

How to get this update


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. 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 (KB4552152) 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 or Microsoft Update Yes Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you’ll find the link to download and install the 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) No

You can import this update into WSUS manually. See the Microsoft Update Catalog for instructions.

 

File information

For a list of the files that are provided in this update, download the file information for cumulative update 4550945.

Note Some files erroneously have “Not applicable” in the “File version” column of the CSV file. This might lead to false positives or false negatives when using some third-party scan detection tools to validate the build.