Using Office 365 ProPlus on older, unsupported operating systems may cause performance and reliability issues over time. This includes using Office 365 ProPlus on a Windows operating system that is currently in support. Because Office 365 is governed by the Modern Lifecycle Policy, customers are required to stay current as per the servicing and system requirements for the product or service. As announced previously, Windows 7 will be out of support after January 14, 2020.
