If your Office purchase package includes a product key , enter the product key on one of the websites listed below for your version of Office. After entering the key, you can download and install Office, or you can renew your Office 365 subscription. In this article I will walk you through the steps to enter a product key: For Office 365 for Home, Office 2016, and Office 2013 Step 1: Log on to https://www.office.com/setup Step 2: Sign in with your Microsoft account or create an account if you have not already. Step 3: Enter your Office product key Step 4: Follow the prompts to complete the conversion process. For Office 2010, Office 2007 or Office 2011 for Mac Step 1: Log on to https://www.microsoft.com/software-download/office Step 2: Enter your Office product key Step 3: Follow the prompts to complete the download. for Office 365 Business Premium Step 1: Log on to https://www.office.com/setupkey Step 2: Enter your Office product key Step 3: Follow the prompts to