Following worked for me:
If you get the following error In order to install Windows Azure Active Directory Module for Windows PowerShell, you must have Microsoft Online Services Sign-In Assistant version 7.0 or greater installed on this computer, then install the Microsoft Online Services Sign-In Assistant for IT Professionals BETA: http://www.microsoft.com/en-us/download/details.aspx?id=39267
C:\Windows\System32\WindowsPowerShell\v1.0\Modules\
to the folder
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Modules\
https://stackoverflow.com/a/16018733/5810078.
(But I have actually copied all the possible files from
C:\Windows\System32\WindowsPowerShell\v1.0\
to
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\
(For copying you need to alter the security permissions of that folder))