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The issue occurs due to any of the following:

  • Your username and/or password are invalid.
  • You are using an account without administrator privileges.
  • Windows Firewall blocks incoming or outgoing connection on the ports used by Trend Micro.
  • If you are using Windows XP, the target XP machine uses the Simple File Sharing feature.
  • If you are using Windows Vista, the File and Print Sharing feature is disabled or the Remote Registry is not running.

To resolve the issue, do one of the following:

For Windows XP

  • Make sure that you are using the correct username and password and your account has local administrator rights.
  • Disable your Windows Firewall.
  • If the target machine is using Simple File Sharing, disable this feature.
    1. Double-click the My Computer icon.
    2. Click Tools > Folder Options.
    3. Click View, and then uncheck Use simple sharing (Recommended).
    4. Click Apply > OK.

    For more information on the feature, refer to this Microsoft article: How to use the Simple File Sharing feature to share files in Windows XP.

For Windows Vista, 7, 8.X, 10

  • Make sure that you are using the correct username and password and your account has local administrator rights.
  • Turn off your Windows Firewall.
  • Enable the File and Print Sharing feature. For the procedure, refer to this Microsoft article: Configuring File and Printer Sharing Behavior in Windows Vista.
  • If the Remote Registry Service is not running, set the service to start automatically:
    1. Click Start > Run.
    2. Type “services.msc”.
    3. Right-click Remote Registry, and then click Properties.
    4. Set the startup type to Automatic.
    5. Click OK.