It won't let me download it

Does your computer meet the minimum requirements?

Do you have enough free hard drive space?

https://helpx.adobe.com/after-effects/desktop/get-started/technical-requirements/system-requirements.html

Hi there, sorry you’re having trouble installing After Effects. Could you share a screenshot of the installation error, including any error code, and let us know your OS version? Are you installing through the Creative Cloud desktop app?

Thanks,
Nishu