Source: Windows Central Although after the installation of Windows 10, the built-in version of Microsoft Defender Antivirus will download and apply the most recent updates automatically, the process does not happen immediately, leaving the system temporarily vulnerable to attacks during this period. Since it could be many hours before the system receives the update, Microsoft created a tool, which allows system administrators (and technical users) to service an image to maintain an updated version of the anti-malware solution, even before deployment with a few commands reducing exposure. The ...