SolidWorks 2016 is not officially supported on Windows 11. Using third-party "activators" or "cracks" (such as those by Team SSQ) to bypass licensing is illegal and poses significant security risks to your computer.

Running a decade-old version of software on a modern OS can lead to stability problems: General Hotfixes - SolidWorks

Using activator tools to activate SolidWorks 2016 or any other software comes with significant risks: