After Effects CS6 and Premiere Pro CS6 not available for installation for 32-bit systems
After Effects CS6 and Premiere Pro CS6 require a 64-bit operating system and processor to be installed and run.
If you subscribe to Creative Cloud but use a 32-bit computer system, you will not be able to download and install Premiere Pro CS6 or After Effects CS6.
This issue primarily affects users on the Windows operating system, since all supported versions of the Mac OSX operating system are able to run 64-bit applications.
See this document for details:
"64-bit Windows required for After Effects and Premiere Pro CS6"
In general, you can only download and use applications for which your computer system meets the minimum system requirements.
Premiere Pro system requirements
After Effects system requirements
This document was generated from the following discussion: After Effects CS6 and Premiere Pro CS6 not available for installation for 32-bit systems