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HTTP Error 401.1 appears when opening the Worry-Free Business Security (WFBS) management console

    • Updated:
    • 29 Jun 2021
    • Product/Version:
    • Worry-Free Business Security Standard 7.0
    • Worry-Free Business Security Standard 8.0
    • Worry-Free Business Security Standard 9.0
    • Worry-Free Business Security Standard/Advanced 7.0
    • Worry-Free Business Security Standard/Advanced 8.0
    • Worry-Free Business Security Standard/Advanced 9.0
    • Platform:
    • Windows 2003 Enterprise
    • Windows 2003 Small Business Server
    • Windows 2003 Standard
    • Windows 2008 Enterprise
    • Windows 2008 Essential Business Server
    • Windows 2008 Small Business Server
    • Windows 2008 Standard
    • Windows 2011 Small Business Server Essentials
    • Windows 2011 Small Business Server Standard

Learn how to address the web console error 401.1 on WFBS installed on top of a Microsoft IIS web server. This issue would result in the WFBS web console not opening when being launched.


Do the following:

  1. Open the IIS Manager.
  2. Expand [Server name] > Web Sites > OfficeScan.
  3. Right-click OfficeScan and then select Delete.
  4. Click Yes when the confirmation message appears.
  5. Go to the \Program Files\Trend Micro\OfficeScan\PCCSRV directory.
  6. Run the following commands:
    svrsvcsetup –setvirdir
    svrsvcsetup –setprivilege
    svrsvcsetup –enablessl (only if you are using SSL to access the OfficeScan/WFBS server console)
  7. Open Internet Explorer.
  8. Go to Tools > Internet Options.
  9. On the General tab, click Delete Cookies and then click OK.
  10. Click Delete Files…
  11. Select Delete all offline content and then click OK.
  12. Click Clear History and then click Yes.
  13. Click OK.
  14. Close all the open Internet Explorer windows.
  15. Restart the Microsoft IIS Web Server either via the command line or Control Panel.
    Command line
    1. Open a command prompt.
    2. Run this command: "IISRESET"
    Control Panel
    1. Go to Start > Settings > Control Panel
    2. Restart the WWW Publishing Service.
  16. Restart the Trend Micro OfficeScan Master Service.
  17. Try to launch the OfficeScan management console again.
If the issue still occurs, contact Trend Micro Technical Support and provide the following:
Solution Id:
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