If you don't have any current meetings to join. Install Zoom with one of the installers here, https://support.zoom.us/hc/en-us/articles/207373866-Zoom-Installers. Select the specific operating system you are currently using. 

If you are joining a meeting, after you have clicked on the meeting invite you will be greeted by the screen below.Zoom "Launching" window

  • If you do not have Zoom installed on your computer already, click on "Download & run Zoom".
  • You will see a “Save As” window appear. Click Save to download Zoom to your computer.
  • Once the download is complete, click on the downloaded installation file in your browser to run it.
  • At the end of the installation, Zoom will launch and invite you to join a meeting.