Applies ToAzure Stack HCI, version 20H2

Release Date:

13/04/2021

Version:

OS Build 17784.1645

Improvements and fixes

This security update includes quality improvements. Key changes include:

  • Addresses an issue that might cause a blue screen when attempting to print to certain printers using some apps and might generate the error, APC_INDEX_MISMATCH.

  • Addresses an issue that fails to print the graphical content in a document after installing the March 9, 2021 update.

  • Security updates to Windows Virtualization.

For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.

To return to the Azure Stack HCI documentation site

Known issues in this update

Microsoft is not currently aware of any issues with this update.

How to get this update

The April 13, 2021 security update (KB5001343) for Azure Stack HCI is delivered from the release channels below. To install it on your Azure Stack HCI cluster, see Update Azure Stack HCI clusters.

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: Azure Stack HCI

Classification: Security Updates

File Information

For a list of the files that are provided in this update, download the file information for cumulative update 5001343.

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