Since a long time ago, you could enable extra security on your OS using the free Enhanced Mitigation Experience Toolkit (EMET). Development of EMET was stopped last year, and support for it will end in July 2018. Also, the latest version of EMET 5.5.2 is no longer supported on Windows 10 1709 and will be uninstalled with an in-place upgrade, and installation of EMET will be actively blocked.
But no worries; all the functionality of EMET and even more features are now built in to Windows 10 1709. This new security feature is named Windows Defender Exploit Guard and is located inside the Windows Defender Security Center under App & browser control | Exploit protection:
By accessing the Exploit protection settings, you can control system-wide settings and program-specific overrides. Be carefully with system-wide settings. Per-program settings are...