If required, you may uninstall the Snare agent from your control panel. For example, for Windows 7 navigate to Control Panel | All Control Panel Items | Programs and Features and find the Snare program, for example Snare Enterprise Agent (WEC Only) v5.0.0, and right click to uninstall.
Check your c:\Program Files\Snare directory for any customised logs or configuration files created post-installation, that may require manual removal to delete the Snare directory.