How To Find Dmg On Mac Hdd

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Erasing a disk or volume permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep.

How to Convert a Mac-Formatted Drive to a Windows Drive Chris Hoffman @chrisbhoffman Updated July 10, 2017, 10:23pm EDT Macs format drives with Apple’s HFS+ file system, which Windows won’t recognize or access without third-party software.

How to erase a disk

Proceed based on whether you're erasing your startup disk or some other disk. Your startup disk is the disk (volume) that your Mac started up from. By default it's the disk built into your Mac, named Macintosh HD. If you're selling, giving away, or trading in your Mac, you should erase your startup disk.

Mac

Erase a startup disk

  1. Start up from macOS Recovery.
  2. Select Disk Utility from the Utilities window in macOS Recovery. Then click Continue.
  3. Make sure that the sidebar in Disk Utility shows the name of your startup disk. The volume representing your startup disk is Macintosh HD, unless you renamed it. Don't see it?
  4. Look for a ”Data” volume with the same name, such as ”Macintosh HD - Data.” If you have such a volume, select it. Then choose Edit > Delete APFS Volume from the menu bar, or click the delete volume button (–) in the Disk Utility toolbar.
    When you're asked to confirm, click the Delete button. Do not click Delete Volume Group. Do the same to delete other volumes you might have on your startup disk—except the volume named Macintosh HD.
  5. After deleting any Data volumes, select Macintosh HD in the sidebar.
  6. Click the Erase button or tab, then complete these items:
    • Name: Enter a name that you want the volume to have after you erase it, such as Macintosh HD.
    • Format: Choose either APFS or Mac OS Extended (Journaled) to format as a Mac volume. Disk Utility shows the recommended Mac format by default.
  7. Click Erase to begin erasing. You might be prompted to enter your Apple ID.
  8. When done, quit Disk Utility to return to the Utilities window.
  9. If you want your Mac to be able to start up from this volume again, choose Reinstall macOS from the Utilities window, then follow the onscreen instructions to reinstall macOS on the volume. If you don't reinstall macOS, your Mac might start up to a flashing question mark (?).

Erase some other disk

The steps above also work when erasing a storage device that you're not using as a startup disk. However, in that case it's not necessary to open Disk Utility from macOS Recovery: you can instead open it from the Utilities folder of your Applications folder. And you don't need to delete data volumes first: just select your disk in Disk Utility, then click Erase.

How to change the partition map (scheme) of a disk

In some circumstances, you might need to change the partition map (scheme) while erasing. If you're following instructions that require choosing a scheme, the steps in Disk Utility differ from the steps above.

  1. After opening Disk Utility, choose View > Show All Devices from the menu bar.
  2. The sidebar now shows not just volumes, but also the disks (devices) that contain those volumes. In the following example, APPLE SSD is the disk, Container disk1 is a container on that disk, and Macintosh HD is a volume in that container. (Only APFS-formatted disks have containers.)
  3. Select the disk that you want to erase, such as Apple SSD.
  4. Check the information shown on the right side of the window to find out which partition map is currently in use:
    • GUID Partition Map is appropriate for Mac disks.
    • Master Boot Record is appropriate for external drives used with a PC or Boot Camp.
  5. If the partition map is not appropriate for the disk's intended use, click the Erase button or tab, then complete these items:
    • Name: Enter a name that you want the disk to have after you erase it, such as Apple SSD.
    • Format: To format as a Mac disk, choose either APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
    • Scheme: Choose the appropriate partition map scheme.
  6. Click Erase to begin erasing. If you're erasing your startup disk, you might be prompted to enter your Apple ID.
  7. Quit Disk Utility when done.
  8. If you want your Mac to be able to start up from this disk, choose Reinstall macOS from the Utilities window, then follow the onscreen instructions to reinstall macOS on the disk.

Why erase a disk

Hdd

You can erase a disk or volume at any time, including in circumstances such as these:

  • You want to quickly and permanently erase all content from your Mac and restore it to factory settings, such as when you're selling, giving away, or trading in your Mac.
  • You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
  • You received a message that your disk isn't readable by this computer.
  • You're trying to resolve a disk issue that Disk Utility can't repair.
  • The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
  • The macOS installer says that you may not install to this volume because it is part of an Apple RAID.

About APFS and Mac OS Extended

Disk Utility in macOS High Sierra or later can erase most disks and volumes for Mac using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.

Identify the current format

If you want to know which format is currently in use, use any of these methods:

  • Select the volume in the Disk Utility sidebar, then check the information on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
  • Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
  • Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.

Choose between APFS and Mac OS Extended

If you want to change the format, answer these questions:

Are you formatting the disk that came built into your Mac?
If the built-in disk came APFS-formatted, don't change it to Mac OS Extended.

Are you about to install macOS High Sierra or later on the disk?
If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files.

Are you preparing a Time Machine backup disk or bootable installer?
Choose Mac OS Extended (Journaled) for any disk that you plan to use with Time Machine or as a bootable installer.

Will you be using the disk with another Mac?
If the other Mac isn't using High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't mount APFS-formatted volumes.

Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS.

If your disk doesn't appear in Disk Utility

If Disk Utility doesn't show a sidebar, choose View > Show Sidebar from the menu bar.

If Disk Utility shows the sidebar, but your disk doesn't appear within it, disconnect all nonessential devices from your Mac. If the disk is external, leave it connected, but make sure that it's turned on and connected directly to your Mac using a good cable. Then restart your Mac and try again. If your disk still doesn't appear, your disk or Mac might need service. Learn how to get your Mac ready for service.

Learn more

  • If you can't start up from macOS Recovery, you can instead use a different startup disk, if you have one.
Mac

You may have encountered situations where your Mac hard drive becomes inaccessible whereby all stored data is put at stake. In such situations, leveraging a professional tool is the only potential way to recover data as no manual procedures are accessible. Now, if you are thinking of another Mac machine on which recovery operation can be performed, there is a solution that allows you access your Mac hard drive on your Windows system.

Stellar Mac Data Recovery for Windows allows you to create an image of the entire hard disk or a particular volume. The tool allows creating a full image of the hard disk or the volume for a particular sector or region. The image file is stored with DMG file extension. The procedure to create an image of the Mac hard drive on Windows using the tool is straightforward and does not involve any complexities.

Steps to Create Image of Mac Hard Drive

Follow the steps below:

Step 1) Download and launch the software and select CreateImage tab

Step 2) Next, in the Create Image screen that appears, select a partition from the Logical Drive tree or hard drive from Physical Drive tree and then click on Continue

Format Mac Hdd On Pc

Step 3) You can pick a certain region from the selected volume or physical drive. To select a particular region:

(i) Click on the Select Region button. Then drag and adjust the starting sector and ending sector or alternatively, select a range for the Starting Sector column and Ending Sector column. Click on the OKbutton and then click on Continue

How To Find Dmg On Mac Hdd Download

(ii) An Image for only the selected region will be created thereafter

(iii) In the then appeared CreatingMediaImagetoSave dialog box, provide a name in the File name text box. Then, select a storage location to save the image file and click on Save

(iv) When the process to create a disk image of Mac hard drive is successfully accomplished, the tool will display an error message “Do you want to Recover from the latest created Image?” either click on Yes to begin recovering files from a newly created image or select No to close the dialog box.

Note: You can then recover files from the image any time later by using the Resume Recovery option.

(v) If you select Yes; then follow the given instructions as per VolumeImage or HardDiskimage selection

For Volume image:

  • Select a recovery process from Quick Recovery, Deleted File Recovery, Advance Recovery and Photos, Music & Video File Recovery.
  • The Scan process will be initiated and all the recovered files will be displayed in the tool preview panel
  • Save the required files at a specified location on your Windows machine

For Hard Disk image:

  • Select one of the recovery processes from Quick Recovery, Deleted File Recovery, Formatted Media or Lost File Recover or Search Lost or Deleted Volumes

Important!

If you have selected Deleted File Recovery process, you will need to know the file formats teat are supported by the Stellar Data Recovery for Mac on Windows. The file extensions include:

3GP, AIFF, AVI, ARW, AV, AAC, AI, BMP, BZ2, CR2, CWS, CWS, CWK, DNG, DCR, EPX, EMLX, ENC, ERF, EPS, GIF, FLV, JPEG, FLV, GIMP, iCAL, NEF, NSF, RAR, RTF, QBW, PDF, PNG, SR2, TIFF, TAX, WMA, WMV, WAV, SIT, SCPT, SWF, ZIP, X3F, RNS, VMX, SHW, QBW, and many more.

How To Find Dmg On Mac Hdd Windows 10

Once the drive image is created, you can easily restore data in case of corruption, data deletion, or drive failure. It is recommended to keep the image file (.dmg) at a location other than the system hard drive. This is because in case any failure takes place, it would be possible to recover and restore data back to the machine.

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