To get a product key for Microsoft PowerPoint, users much purchase the product. The product comes in CD versions and downloadable forms.
When Microsoft products are purchased, a private key is given. This key, or code, allows users to activate their programs. As of 2014, Microsoft offers free trials for PowerPoint and other programs. These trials vary in length of time, and they come with a temporary product key. After the trial expires, users must pay to continue receiving access. Often, users are emailed a product key when they choose to purchase the product for downloading. Some programs allow users to open them a certain amount of times before a product key is required.