Topic: How To Install Setup of Microsoft Office.com?
For Office 365 Home Premium, it does not require an Installation/Activation product key. To activate your product, you only need the email address associated with your office. Microsoft accounts allow you to install a limited amount of software. If you have no installed programs left, you can deactivate an existing one. MS office 365 may not be compatible with certain OSs. Before installing it on your desktop/laptop, verify it.