You must be aware that Microsoft has pulled back Windows 10 October 2018 update due to issues faced by several users. Mainly, the update resulted in missing files and many store apps including Microsoft’s own Edge browser stopped working.
Few of our customers faced problems (application crash) while trying to run WebHarvy after installing this update. We advised them to uninstall the update and they confirmed that the problem was solved.
So if any of our users who have installed the October 2018 Windows update is facing a similar issue we recommend that you roll back and uninstall the update and try again. As always, you can contact our support for any assistance.