You will need
  • - Internet Explorer 7
Click "Continue to this website (not recommended)" in the alert window Internet Explorer Error "certificate: navigation blocked" to eliminate problems with the certificate selected web page and call the dialog box invalid certificate" click on the field with the symbol of the shield in the top bar next to the address bar of the browser window.
Open the link "View certificates" and click on the "General" tab to determine the validity of the certificate the selected web site.
Click the "Install certificate" to utility "certificate import Wizard" and click the Next button in the main window of the wizard.
Apply the check box on the field Automatically select the certificate store based on the type of certificate and press the Next button to confirm your selection (for Windows XP).
Confirm that you want to install the certificates of the selected server by clicking Yes on the prompt window of the system, and then click Finish to complete the installation process, the imported certificate (for Windows XP).
Click OK to confirm application of the selected modifications (for Windows XP).
Apply the check box on the "Place all certificates in the following store" and click "Browse" in the window certificate import wizard (for Windows Vista).
Select "Trusted root certification authorities" in the dialog window "Select certificate store" and click the OK button to confirm your selection (for Windows Vista).
Click "Next" and confirm the command by pressing the "done" button in the new dialog box in the wizard (for Windows Vista).
Click OK to complete the installation procedure, the imported certificate and then restart Internet Explorer to apply your changes.