It is suggested that the administrator creates copies of an image file before updating, as the update may adversely affect the image. Please note that the time Scheduled Updates take is also dependent on the number of updates that are chosen to be installed. The more updates chosen, the longer the Scheduled Update will take. The bottom line is that these processes are not as efficient as the Schedule Update feature. While these processes have their place, these are not the best tools for the job.
For example: In the time it would take an administrator to have half of the image loaded, via DISM, the Scheduled Update feature would be finished updating the image. The less time administering updates for the image means that more secure PC images can be produced quicker. While an administrator could use Microsoft Windows Deployment Image Servicing and Management (DISM) to install operating system updates on an image, an administrator could ‘crack” the image and run operating system updates, then recapture the image. Why would an administrator need this feature? This feature allows an administrator to install operating system updates on image files within MECM. One of the lesser-known but quite useful tools of MECM is the Schedule Update feature on image files. MECM authorizes end users access without compromising security. The Microsoft Endpoint Configuration Manager (MECM), is a Microsoft Systems Manager that allows administrators to manage both the deployment and security of devices and applications across an enterprise.
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