Adobe AIR is required if you plan to install applications that have been created using AIR technology. When you will install an utility, Adobe Air will be automatically activated and will help you to finish the installation process. In order to update it, go to Adobe web page, click Need Adobe AIR for a different computer? if you system is not automatically recognized, select Macintosh from the drop-down list, click Download Now and install the utility following the on-screen instructions.