Click on the right hand link to go to the Mozilla Thunderbird website. The site will identify your operating system and offer you the correct software to download.
Click on the Free Download link and save the download file to your computer.
Double click the file Thunderbird setup .exe file to install it on your computer, the Install wizard will run.
Click 'Next' when prompted at all points through the wizard to install Thunderbird.
Click 'Finish' Thunderbird should now run.
Follow setup instructions from the right hand link.
