For the license code, explain the trial versus full license. If they have a purchase date before a certain time, they might be eligible for the version 12 license. Otherwise, newer versions might require different activation keys.

First, I should outline the sections. The user asked for "detailed content," so I need to make sure each part is thorough. Let me think about the structure. Typically, an article like this would have an introduction, system requirements, download steps, installation guide, troubleshooting, and conclusion. Maybe also some additional tips or alternative download methods.

Also, hardware support: older audio interfaces might not work with newer macOS versions, even if Pro Tools is installed. So users should check if their interface is supported on their specific macOS version and Pro Tools version.