how to capture image on mac using disk utility

Disk Utility will ask you to enter a password.

Given the speed of today’s Macs, you are better off choosing 256-bit encryption. The latter is twice as strong, but may require a bit more processing power. Next, click the Encryption menu and choose either 128-bit or 256-bit encryption.

If not, just choose read/write disk image. This is the best choice if you plan to alter the contents of the disk image. With a sparse image, you can add more files to the disk image, and it will resize itself. These two formats are quite similar, but for our purposes we will choose a sparse disk image. (Note that you can choose from a number of image formats that make your disk image more flexible.) Click the Image Format menu and you can choose a sparse or sparse bundle disk image. Depending on how many files you want to store, you may want to make this a bit smaller or much larger. By default, Disk Utility sets the disk image to be 100 MB. That’s the second Name field, lower down in the dialogue.Ĭhoose a size for your disk image. You name the disk image twice: once for the file name, at the top of the dialogue, and once for the name of the volume, which mounts in the Finder. Start by choosing a name and the location where you want to save the disk image. As you can see in the screenshot below, you have a number of options for creating your disk image. Choose File > New Image > Blank Image, or press Command-N. Let’s start by creating a new blank disk image. In this article, you will learn both ways how to encrypt disk images to protect files with Disk Utility. You have two options for creating encrypted disk images: you can either create a new, empty disk image, or you can have Disk Utility make a disk image of a folder, such as one containing files that you want to archive. To do this, start by opening Disk Utility - you’ll find this app in the Utilities folder in your Applications folder (go to Finder > Applications > Utilities). One of this app’s powerful features is the ability to make disk images, with or without encryption. We recently discussed how to use Disk Utility to manage disks and volumes. Apple’s Disk Utility lets you create an encrypted disk image that you can use to store sensitive files that no one, not even the NSA, can get at. You don’t need any special software to do this your Mac already contains the app you need. If you want to protect files on your Mac, on an external drive, or even in the cloud, it’s a good idea to encrypt them. Apple + How To How to Encrypt Disk Images with Disk Utility to Protect Sensitive Files

How to capture image on mac using disk utility