Where do you go in computer to install Catalina. My Mac Is High Sierra
Where, How, to install Catalina on my High Sierra Mac Pro desk version? Where do I get it?
Where, How, to install Catalina on my High Sierra Mac Pro desk version? Where do I get it?
See the information in How to upgrade to macOS Catalina - Apple Support
See the information in How to upgrade to macOS Catalina - Apple Support
Some Mac Pro models can not run Catalina. Be sure you check requirements before you spend an hour downloading software you can't use.
Where do you go in computer to install Catalina. My Mac Is High Sierra