I installed my PC with Windows 8 Enterprise and as the first thing installed the Windows 8 RSAT – i noticed that the install was VERY fast.
I then went into the Turn on Windows features part and NO RSAT was present.
I found out that i had to go into the language portion and then install the EN-US Language pack.
Then i was good to go.
I am pretty sure this is because i use a Windows 8 International media.
For the future i will not.
So make sure you have one of these language packs installed which curently are supported by RSAT: cs-CZ, de-DE, en-US, es-ES, fr-FR, hu-HU, it-IT, ja-JP, ko-KR, nl-NL, pl-PL, pt-BR, pt-PT, ru-RU, sv-SE, tr-TR, zh-CN, zh-HK, and zh-TW