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This article describes the issues that are fixed in Hotfix 1 for Microsoft System Center 2016 Virtual Machine Manager Update Rollup 5. This article also contains the installation instructions for this hotfix.

There are no updates to the Administrator Console or Guest Agent as part of this hotfix. However, installation of this hotfix requires you to update the Host agent on all the VMM-managed hosts.

Issues that are fixed

The Refresh action on a host or host cluster takes longer than expected to finish and consumes additional memory after you upgrade the server to System Center 2016 Virtual Machine Manager Update Rollup 5.  

After you apply this hotfix, the Refresh action will take less time to finish and consume less memory space.

How to obtain and install this hotfix

Hotfix packages for Virtual Machine Manager are available by manual download.

Manual download

Go to the following website to manually download the hotfix package from the Microsoft Update Catalog:

Download the Virtual Machine Manager Server hotfix package now.

For information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

Microsoft scanned this file for viruses, using the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to it.

Installation instructions

To manually install the hotfix package, run the following command from an elevated command prompt:

msiexec.exe /update packagename

For example, to install the Hotfix 1 package for System Center 2016 Virtual Machine Manager Server Update Rollup 5 (KB4346689), run the following command:

msiexec.exe /update kb 4346689 _vmmserver_amd64.msp


You must have Update Rollup 5 for System Center 2016 Virtual Machine Manager installed to apply this hotfix.

File updated by this hotfix

Virtual Machine Manager Server KB 4346689

Files that are changed





Microsoft has confirmed that this is an issue in the Microsoft products that are listed in the "Applies to" section.


Learn about the standard terminology Microsoft uses to describe software updates.

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