How to import Certificate Authority in Windows 7

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How to download Computerisms Certificate Authority

  • Open your preferred browser and navigate to:
        http://help.computerisms.ca
  • Scroll down and Click on "The Certificate Warnings Issue"
  • Under the FAQ section right click on the first link and click on "Save Link As"


  • Save the file on your Desktop
    • Note: you can save the file anywhere you wish but this tutorial assumed that you saved it on your Desktop

How to install Computerisms Certificate Authority into your Firefox Web Browser

  • To add the certificate to Firefox, start by opening Firefox


  • Click on the top right menu bar (looks like 3 horizontal lines)


  • Click on Options
  • Step 1: Click on Advance in the left menu bar


  • Step 2: Select the Certificates tab in the top menu bar


  • Step 3: Click on View Certificates
  • Click the Authorities section tab


  • Click the Import button
  • Navigate to the Desktop and select the file named Computerisms.Root.Certificate.pem


  • Click on open
  • Check all the options and click on OK


  • Note that the last option, "Trust this certificate for identifying software makers", is not required. You may leave this unchecked, but the other 2 options are required.

How to install Computerisms Certificate Authority into your Thunderbird mail client

  • To add the certificate to Firefox, start by opening Firefox


  • Click on the top right menu bar (looks like 3 horizontal lines)


  • Click on Options
  • Step 1: Click on Advance in the left menu bar


  • Step 2: Select the Certificates tab in the top menu bar


  • Step 3: Click on View Certificates
  • Click the Authorities section tab


  • Click the Import button
  • Navigate to the Desktop and select the file named Computerisms.Root.Certificate.pem


  • Click on open
  • Check all the options and click on OK


  • Note that the last option, "Trust this certificate for identifying software makers", is not required. You may leave this unchecked, but the other 2 options are required.

How to install Computerisms Certificate Authority into your Windows 7 Operation System


  • Click on the Windows Start menu


  • Search for certmgr.msc and press Enter
  • Right click on the Trusted Root Certification Authorities


  • Place your mouse cursor on the All Tasks tab and click on Import
  • Click on the Next button in the Certificate Import Wizard
  • Click on Browse button in the Certificate Import Wizard
  • Navigate to your Desktop


  • Follow the arrow number 1 and change the drop down menu to "All files"


  • Select the Certificate from Desktop and than click on open
  • Click on the Next button in the Certificate Import Wizard
  • Make sure that the "Place all certificates in the following store" is checked and the "Certificate store" is "Trusted Root Certification Authorities"
  • Click Next and than click on Finished
  • On the Security Warning pop up page click Yes to confirm that you are adding the Certificate to your system