Although there are various tools that works successfully but I would want to cover one at a time. This image creation is done for NetInstall or NetRestore purpose, that means, after doing a netboot, you can use this image to install a fresh OS on your Mac. Its simple, its quick and all you need to know is how to use mouse. Before you begin, make sure that the current running OS and the OS you want to build should be same. Lets begin :) What you need: OS X 10.9 from App Store (well, any OS you want). Steps are given in other post here . AutoDMG app from this link Simple Steps: Launch AutoDMG. There is nothing to install. The downloaded file can be double clicked to open and then double click on AutoDMG icon. Drag the Install OS X Mavericks.app (you had downloaded from App Store) on AutoDMG. It will examine the files and then show you the list of updated available for this version. Select if you want to install all updates. If done, it will download it online and add in the applicatio
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