If you want to add additional e.g. Output Styles (.ens), Connection files (.enz) or import filters (.enf) on your Windows machine this is easy. The files are already on your system and just need to be activated.
In summary, you need to start the control panel and make changes to your EndNote installation, but it is easy peasy, just follow the below instructions.
Start Windows control panel
Pictures for Windows 7, search for the control panel
Choose “Uninstall a program”