www.office.com/setup

office.com/setup - To get started Office 2019, 2016 and office 365 download or installation you must need valid 25 character product key & visit office.com/setup.
norton.com/setup - Learn how to purchase, install, and activate Norton setup with the 25 digit product key.
mcafee.com/activate - find step-wise step procedure for the setup of McAfee antivirus, installation and activation.