Update rollup for Azure File Sync Agent (Preview Refresh 2): June 2018

Applies to: Cloud Services (Web roles/Worker roles)


This article describes the improvements and issues that are fixed in the update for the Azure File Sync Agent (Preview Refresh 2) that's dated June 2018. Additionally, this article contains installation instructions for this release.

Improvements and issues that are fixed

  • Sync fails if a server is added to an existing sync group if reparse points exist in the server endpoint location on the server.

    In this scenario, the following is logged in the Microsoft-FileSync-Agent/Operational event log:

Note Update rollups for Azure File Sync Agent (Preview Refresh) are cumulative. These updates include all improvements and fixes that were included in the previous cumulative update.

More information about this update rollup

This update is available for Windows Server 2012 R2 and Windows Server 2016 installations that have the Azure File Sync agent (Preview Refresh 2) installed.

The agent version for this Refresh 2 update is

How to get and install this update rollup for the Azure File Sync Agent (Preview Refresh 2)

Update rollups for the Azure File Sync Agent are available from Microsoft Update or by manual download.

Microsoft Update

To get and install this update rollup from Microsoft Update, follow these steps on a server that has Azure File Sync Agent installed:

Server 2016

  1. Select Start, and then select Settings.
  2. In Settings, select Update & security.
  3. In the Windows Update window, select Check online for updates from Microsoft Update.
  4. Verify that the update rollup is listed, and then select Install now.

Server 2012 R2

  1. Select Start, and then select Control Panel.
  2. In Control Panel, double-click Windows Update.
  3. In the Windows Update window, select Check for updates.
  4. Select Important updates are available.
  5. Verify the update rollup is selected, and then select Install.

Manual Download

Go to the following website to manually download this update rollup package from the Microsoft Update Catalog:

 Update Rollup for Azure File Sync Agent (Preview Refresh 2) - June 2018 (KB4338624)

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

msiexec.exe /p packagename.msp REINSTALLMODE=OMUS REINSTALL=StorageSyncAgent,StorageSyncAgentUpdater,StorageSyncAgentAzureFileSync /qb /l*v Patch.log

For example, to install the Azure File Sync Agent update rollup for Server 2016, run the following command:

msiexec.exe /p StorageSyncAgent_WS2016_KB4338624.msp REINSTALLMODE=OMUS REINSTALL=StorageSyncAgent,StorageSyncAgentUpdater,StorageSyncAgentAzureFileSync /qb /l*v Patch.log


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