www.office.com/setup allows you to redeem your Office subscription online and use it to download and install the setup on your device. When you purchase an Office product online or offline, you need to activate it first by using the product key. This is done in two steps i.e. signing into your Office account and entering the product activation key on www.office.com/setup. Once, you enter all the required details, you can download the setup on your device and run it to install. To know more about Office setup and to troubleshoot issues with the setup procedure, visit our portal now.