In some cases, the Creative Cloud app for desktop or the Adobe Application Manager don't display all the applications available in Creative Cloud. The apps you can't install on your computer are removed from the download selection screen. The reason usually has to do with the operating system and computer that you're using the Adobe Application Manager with. Some of the situations that cause this issue are listed below.
After Effects and Adobe Premiere Pro
Windows versions of Adobe Premiere Pro and Adobe After Effects CS5 and later require a 64-bit edition (other than Windows XP) of Windows. You cannot install (or run) Adobe Premiere Pro or After Effects on any of the following operating systems:
- 32-bit and 64-bit editions of Windows XP Home or Professional
- 32-bit editions of Windows Vista Home Basic, Home Premium, Business, Ultimate, or Enterprise
- 32-bit editions of Windows 7 Starter, Home Premium, Professional, or UltimateMac computers with Intel
- Mac computers with Core Solo or Duo 32-bit processors. For more information about how to tell if your Mac and whether it offers 64-bit support, see How to tell if your Intel-based Mac has a 32-bit or 64-bit processor.
Lightroom 4 isn't supported on 32-bit and 64-bit editions of Windows XP Home or Professional.
Review the system requirements for more information.