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"Installation Unsuccessful" notification appears when installing Worry-Free Business Security Services (WFBS-SVC)

    • Updated:
    • 28 Mar 2020
    • Product/Version:
    • Worry Free Services for Dell
    • Worry-Free Business Security Services 5.7
    • Worry-Free Business Security Services 6.1
    • Worry-Free Business Security Services 6.2
    • Worry-Free Business Security Services 6.3
    • Worry-Free Business Security Services 6.5
    • Worry-Free Business Security Services 6.6
    • Worry-Free Business Security Services 6.7
    • Worry-Free Business Security Services for Dell 5.6
    • Platform:
    • Windows 2003 Server R2
    • Windows 2003 Small Business Server
    • Windows 2003 Small Business Server R2
    • Windows 2008 Essential Business Server
    • Windows 2008 Server Core
    • Windows 2008 Server Foundation
    • Windows 2008 Server R2
    • Windows 2008 Small Business Server
    • Windows 2011 Small Business Server Standard
    • Windows 2012 Web Server Edition
    • Windows 7 32-bit
    • Windows 7 64-bit
    • Windows 8 32-bit
    • Windows 8 64-bit
    • Windows Storage Server 2003
    • Windows Vista 32-bit
    • Windows Vista 64-bit
    • Windows XP Home
    • Windows XP Professional

You cannot install the WFBS-SVC Agent and get the following error message:

error message

Installation Unsuccessful!
The installation could not be completed.

Unable to connect to the Worry-Free Business Security Services server. Verify that you can connect to the Internet and try again.

For more information, go to the following website: Knowledge Base.


To resolve the issue:

  • Make sure that you have the correct Internet connection settings. You may be having Internet connection issues because of incorrect DNS, Gateway, or Proxy configurations.
  • Make sure to allow cookies on your browser. You may choose Low for Internet Explorer settings and Accept cookies from sites for Mozilla Firefox settings.
  • When your computer is connected to the Internet through a proxy server, make sure that the system proxy setting is applied to the WFBS-SVC agent, WFBS-SVC_Agent_Installer.exe and WFBS-SVC_Downloader.exe.

To set the system proxy for Windows 7:

  1. Go to Start > Control Panel.
  2. Click Network and Internet.

    Click Network and Internet

  3. Click Internet Options.

    Click Internet Options

  4. Click Connections > LAN settings.
  5. Tick the Use a proxy server for your LAN (These settings will not apply to dial-up or VPN connections) check box, and then enter the correct proxy server address and port number.

    Configure Proxy Server

  6. Tick the Bypass proxy server for local addresses checkbox and then click OK.
  7. Open Internet Explorer and reinstall using the Web installation method.

Other troubleshooting steps:

If the issue still persists, contact Trend Micro Technical Support, and then provide the Case Diagnostic Tool (CDT) log generated on the client computer.

If the installation is not successful, gather the following logs:

Downloader Logs:

Clear %temp% before replicating the issue
  • %temp%\Downloader.ini
  • %temp%\OFCNT.log
  • %temp%\MsiexecLog.log
  • %temp%\wfbss_downloader.log
  • %temp%\hosted_pak_inst folder
  • %temp%\InitialSetting.GPB

Registry Export and Install Logs:

  • %temp%\OFCNT.log
  • %temp%\SVCNT.log
  • \HostedAgent\log\agent.log
  • "HKLM\ " Registry Export
  • "HKEY_Current_User" Registry Export
Troubleshoot; Install
Solution Id:
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