On January 14, 2020, Microsoft ceased active support for Windows 7 and Windows Server 2008 R2. Due to this change, Sage will also stop supporting these platforms for Sage 100 and Sage 100cloud. Users are urged to upgrade to a compatible operating system as outlined in Sage’s Supported Platforms document.
After January 14, 2020, if your PC is running Windows 7, it will no longer receive security updates. Therefore, it’s important that you upgrade to a modern operating system such as Windows 10, which can provide the latest security updates to help keep you and your data safer. In addition, Microsoft customer service will no longer be available to provide Windows 7 technical support. Related services for Windows 7 will also be discontinued over time. For example, certain games such as Internet Backgammon and Internet Checkers as well as Electronic Program Guide for Windows Media Center are scheduled to be discontinued in January 2020.Microsoft
Your existing Sage 100 and Sage 100cloud system will continue functioning on these platforms however you may have trouble loading Sage patches or obtaining future technical support related to these platforms.
Microsoft expected to patch major Windows security flaw today, and may NOT patch Windows 7MSPoweruser
We recommend you upgrade your operating system to a supported level and avoid potential costly interruption in service.
Many existing users of Windows 7 might qualify ( still ) for a free upgrade to Windows 10 by using these instructions – How to upgrade from Windows 7 to Windows 10 free.