Some users have reported issues running SolidWorks 2016 on Windows 11, including:
Install SolidWorks 2016 on your Windows 11 machine. You can download the installation files from the official SolidWorks website. solidworks 2016 activator windows 11
Temporarily lowering User Account Control settings can prevent the installer from being blocked. Some users have reported issues running SolidWorks 2016