The issue is caused by the cached registry settings.
To resolve the issue:

1. Open the Registry Editor.

    

   Always back up the whole registry before making any modifications. Incorrect changes to the registry can cause serious system problems.
2. Navigate to HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify.
3. Delete the following registry keys:
   • IconStreams
   • PastIconStream
4. Restart the Windows Explorer.
   1. Open the Task Manager.
   2. Click the Process tab.
   3. Right-click Windows Explorer and select Restart.
5. Launch the OfficeScan Agent again.