Not really Portable? Windows Activation?

[admin]

If you do not activate Windows, certain functionalities will be disabled, but does not affect the normal use. 
Please refer to the following link: 
http://technet.microsoft.com/en-us/library/jj592680.aspx#wtg_faq_roamact
http://answers.microsoft.com/en-us/windows/forum/windows8_1-windows_install/are-there-any-limitations-for-unactivated-windows/b9a83b29-5788-4bd0-ab61-3d56d09a9ea1?auth=1