If you have a legitimate license and are looking to run this specific version, here are the original minimum requirements :

Adobe officially supports the current version and up to two previous major versions through the Adobe Creative Cloud desktop app . Open the app. Find After Effects in your list of apps. Click the three dots (...) (More actions) next to the app. Select Other versions to see what is available for install.

: Windows 7 (SP1) or Windows 8 (64-bit); Mac OS X 10.9 or 10.10. Processor : Multicore Intel processor with 64-bit support. RAM : 4 GB (8 GB recommended). Hard Disk : 5–10 GB of available space. The Official Way to Get Older Versions

: CC 2015 is now over a decade old. Adobe typically restricts downloads to more recent versions (e.g., v22 and up) for security and compatibility reasons. Adobe After Effects CC 2015 Review - Videomaker

Searching for "Adobe After Effects CC 2015 Portable Free Download" typically leads to unofficial third-party sites. While the idea of a "portable" version—one that runs without installation—is convenient, it carries significant security and legal risks.

Adobe After Effects Cc 2015 Portable Free Download 【Ultimate ✭】

If you have a legitimate license and are looking to run this specific version, here are the original minimum requirements :

Adobe officially supports the current version and up to two previous major versions through the Adobe Creative Cloud desktop app . Open the app. Find After Effects in your list of apps. Click the three dots (...) (More actions) next to the app. Select Other versions to see what is available for install.

: Windows 7 (SP1) or Windows 8 (64-bit); Mac OS X 10.9 or 10.10. Processor : Multicore Intel processor with 64-bit support. RAM : 4 GB (8 GB recommended). Hard Disk : 5–10 GB of available space. The Official Way to Get Older Versions

: CC 2015 is now over a decade old. Adobe typically restricts downloads to more recent versions (e.g., v22 and up) for security and compatibility reasons. Adobe After Effects CC 2015 Review - Videomaker

Searching for "Adobe After Effects CC 2015 Portable Free Download" typically leads to unofficial third-party sites. While the idea of a "portable" version—one that runs without installation—is convenient, it carries significant security and legal risks.