Update Rollup for Azure File Sync Agent – May 2020

Applies to: Azure


This article describes the issues that are fixed in theUpdate Rollup for Azure File Sync Agent that is dated May 2020. Additionally,this article contains installation instructions for the update.

Improvements and issues that are fixed

  • StorageSync Agent (FileSyncSvc) crashes frequently after installing the Azure FileSync v10 agent.

More information about this update rollup

  • Thisupdate is available for Windows Server 2012 R2, Windows Server 2016 and WindowsServer 2019 installations.
  • AzureFile Sync agent version or a later version is required to upgradeexisting agent installations.
  • A restart is required for servers that have an existing Azure File Sync agent installation.
  • The agent version of this update rollup is

How to get and install this update rollup for the Azure File Sync Agent

The Azure File Sync agent isavailable from Microsoft Update, Microsoft Update Catalog, and MicrosoftDownload Center.
  • If the Azure File Sync agent is not currentlyinstalled on a server, use the agent installation package on the MicrosoftDownload Center. The agent installation package on Microsoft Update andMicrosoft Update Catalog is intended for agent upgrades only.
  • To update existing agent installations, runAfsUpdater.exe (located in the agent installation directory) or download andinstall the update from Microsoft Update or Microsoft Update Catalog.
To obtain and install from Microsoft Update,follow these steps on a server that has Azure File Sync agent installed:
Server 2016 and Server 2019
  1. Click Start, and then click Settings.
  2. In Settings, click Update & security.
  3. In the Windows Update window, click Check online for updates from Microsoft Update.
  4. Verify the Azure File Sync agent update is listed and then click Install now.
Server 2012 R2
  1. Click Start, and then click Control Panel.
  2. In Control Panel, double-click Windows Update.
  3. In the Windows Update window, click Check for updates.
  4. Click Important updates are available.
  5. Verify the Azure File Sync agent update is selected, and then click Install.
MicrosoftUpdate Catalog
Go to thefollowing website to manually download this update from the Microsoft UpdateCatalog:
To manuallyinstall the update package, run the following command from an elevated commandprompt:
  • msiexec.exe /p packagename.msp REINSTALLMODE=OMUSREINSTALL=StorageSyncAgent,StorageSyncAgentAzureFileSync,StorageSyncAgentGuardFilter,StorageSyncAgentUpdater/qb /l*v KB4522412.log
For example, toinstall the Azure File Sync agent update for Server 2016, run the followingcommand:
  • msiexec.exe /pStorageSyncAgent_WS2016_KB4522412.mspREINSTALLMODE=OMUS REINSTALL=StorageSyncAgent,StorageSyncAgentAzureFileSync,StorageSyncAgentGuardFilter,StorageSyncAgentUpdater/qb /l*v KB4522412.log
MicrosoftDownload Center
Go to the Microsoft Download Centerto manually download the agent installation package for new agentinstallations.
How to perform a silentinstallation for a new agent installation
To perform a silent installation for a new agentinstallation that uses the default settings, run the following command at anelevated command prompt:
  • msiexec /i packagename.msi /qb/l*v AFSv10Installation.log
For example, to install the Azure File Sync agentfor Windows Server 2016, run the following command: 
  • msiexec /iStorageSyncAgent_WS2016.msi /qb /l*v AFSv10Installation.log
  • Use the/qb switch to display restart prompts (if required), agent update, and serverregistration screens. To suppress the screens and automatically restart theserver (if required), use the /qn switch.
  • To perform asilent installation with custom settings, follow the steps documented in KB4459986.