Creating Iso on Mac Can't Be Read on Windows

Create a deejay epitome using Disk Utility on Mac

Yous can use Disk Utility to create a disk epitome, which is a file that contains other files and folders.

Open Disk Utility for me

Create a bare deejay image for storage

You tin create an empty disk image, add information to it, and so utilize it to create disks, CDs, or DVDs.

1. In the Disk Utility app on your Mac, choose File > New Prototype > Blank Image.

2. Enter a filename for the disk image, add together tags if necessary, then choose where to relieve it.

   This is the proper noun that appears in the Finder, where you save the deejay image file before opening it.

3. In the Name field, enter the name for the disk image.

   This is the name that appears on your desktop and in the Finder sidebar, afterwards you open up the disk image.

4. In the Size field, enter a size for the disk image.

5. Click the Format pop-up menu, so choose the format for the deejay:

   • If the disk prototype will exist used with a Mac that has a solid state drive (SSD) and uses macOS 10.13 or later on, choose APFS or APFS (Case-sensitive).

   • If the deejay image will be used with a Mac with macOS 10.12 or earlier, cull Mac Os Extended (Journaled) or Mac OS Extended (Instance-sensitive, Journaled).

   • If the disk image will exist used with a Mac or Windows computer and is 32 GB or less, choose MS-DOS (FAT); if it's over 32 GB, choose ExFAT.

6. To encrypt the disk epitome, click the Encryption pop-up carte du jour, then choose an encryption pick.

7. Click the Partitions popular-up menu, and then choose a partition layout.

8. Click the Image Format pop-up menu, and so choose an selection:

   • Sparse bundle deejay image: Aforementioned as a sparse disk image (below), but the directory data for the epitome is stored differently. Uses the .sparsebundle file extension.

   • Sparse deejay paradigm: Creates an expandable file that shrinks and grows every bit needed. No additional infinite is used. Uses the .sparseimage file extension.

   • Read/write disk paradigm: Allows you to add files to the disk paradigm after information technology'south created. Uses the .dmg file extension.

   • DVD/CD master: Changes the size of the prototype to 177 MB (CD 8 cm). Uses the .cdr file extension.

9. Click Salvage, then click Done.

   Disk Utility creates the disk image file where y'all saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar.

10. In the Finder, copy your files to the mounted disk image, then eject it.

11. Restore the disk image to a deejay.

    For more than data virtually deejay epitome types, encounter the manual (human) page for hdiutil.

Create a disk paradigm from a disk or connected device

You tin create a deejay image that includes the data and free infinite on a physical deejay or connected device, such as a USB device. For example, if a USB device or volume is lxxx GB with 10 GB of information, the disk image will be eighty GB in size and include data and free space. You can and so restore that disk epitome to another volume.

Note: You tin can't create images of private APFS volumes. Y'all tin can't create images of APFS containers on Mac computers with Apple silicon or an Apple T2 Security Scrap.

1. In the Disk Utility app on your Mac, select a disk, book, or connected device in the sidebar.

2. Cull File > New Prototype, so cull "Image from [device proper noun]."

3. Enter a filename for the disk image, add tags if necessary, and so choose where to salvage information technology.

   This is the name that appears in the Finder, where yous save the deejay image file before opening it.

4. Click the Format popular-up bill of fare, then choose an option:

   • Read-only: The disk image can't be written to, and is quicker to create and open.

   • Compressed: Compresses data, then the disk image is smaller than the original data. The disk image is read-only.

   • Read/write: Allows you lot to add files to the disk image afterwards it's created.

   • DVD/CD chief: Can be used with third-political party apps. Information technology includes a copy of all sectors of the disk image, whether they're used or not. When y'all utilize a master disk epitome to create other DVDs or CDs, all information is copied exactly.

5. To encrypt the disk image, click the Encryption pop-upwardly bill of fare, so choose an encryption option.

6. Click Salvage, then click Done.

   Disk Utility creates the deejay paradigm file where you saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar.

Important: Don't create a disk image of a deejay that y'all believe to be failing or that contains corrupted data. The disk image may not serve equally a reliable backup.

For technical information about creating a restore disk image, see the Apple Software Restore (ASR) manual (man) page.

Create a disk paradigm from a folder or continued device

You can create a deejay paradigm that contains the contents of a folder or continued device, such as a USB device. This method doesn't copy a device'southward costless space to the deejay epitome. For case, if a USB device or volume is 80 GB with 10 GB of information, the disk image will be 10 GB in size and include only information, not gratis infinite. You lot tin can then restore that disk image to some other volume.

1. In the Disk Utility app on your Mac, cull File > New Image, so choose Paradigm from Folder.

2. Select the folder or connected device in the dialog that appears, then click Open up.

3. Enter a filename for the disk prototype, add tags if necessary, then choose where to salve it.

   This is the name that appears in the Finder, where you save the disk image file before opening it.

4. To encrypt the disk image, click the Encryption pop-upwardly carte du jour, then choose an encryption selection.

5. Click the Image Format pop-up menu, then choose an pick:

   • Read-only: The disk image can't exist written to, and is quicker to create and open.

   • Compressed: Compresses data, and then the disk image is smaller than the original information. The disk image is read-only.

   • Read/write: Allows you to add together files to the disk image after it's created.

   • DVD/CD master: Can be used with third-party apps. It includes a copy of all sectors of the deejay image, whether they're used or non. When you utilize a chief deejay image to create other DVDs or CDs, all information is copied exactly.

   • Hybrid prototype (HFS+/ISO/UDF): This deejay epitome is a combination of deejay image formats and can be used with different file system standards, such as HFS, ISO, and UDF.

6. Click Save, and then click Done.

   Deejay Utility creates the disk image file where you saved it in the Finder and mounts its deejay icon on your desktop and in the Finder sidebar.

For technical information about creating a restore disk image, see the Apple Software Restore (ASR) manual (man) page.

Create a secure disk image

If you accept confidential documents that you don't want others to see without your permission, you can put them in an encrypted disk epitome.

Annotation: If you want to protect the contents of the system disk, plow on FileVault using the FileVault pane of Security & Privacy Preferences.

1. In the Deejay Utility app on your Mac, choose File > New Image > Bare Prototype.

2. Enter a filename for the disk image, add tags if necessary, then choose where to save it.

   This is the name that appears in the Finder, where you save the disk image file before opening it.

3. In the Name field, enter the name for the disk image.

   This is the proper noun that appears on your desktop and in the Finder sidebar, after yous open the disk image.

4. In the Size field, enter a size for the deejay image.

5. Click the Format pop-up bill of fare, then choose a format:

   • If yous're using the encrypted disk image with a Mac estimator using macOS 10.13 or subsequently, choose APFS or APFS (Instance-sensitive).

   • If y'all're using the encrypted disk prototype with a Mac computer using macOS 10.12 or earlier, choose Mac OS Extended (Journaled) or Mac OS Extended (Instance-sensitive, Journaled).

6. Click the Encryption pop-upwardly bill of fare, then choose an encryption option.

7. Enter and re-enter a countersign to unlock the disk image, so click Cull.

   WARNING: If you forget this password, you won't exist able to open the disk image and view any of the files.

8. Employ the default settings for the residual of the options:

   • Click the Partitions popular-upwards menu, and then choose Single sectionalization - GUID Partition Map.

   • Click the Image Format pop-up bill of fare, then choose "read/write" disk image.

9. Click Save, then click Done.

   Disk Utility creates the disk image file where y'all saved it in the Finder and mounts its disk icon on your desktop and in the Finder sidebar.

10. In the Finder , copy the documents you want to protect to the disk prototype.

11. If you desire to erase the original documents then they can't exist recovered, drag them to the Trash, then choose Finder > Empty Trash.

When you're finished using the documents on the secure deejay image, exist sure to eject the deejay prototype. As long as it'due south available on your desktop, anyone with access to your computer can use the documents on it.

To admission the data in a deejay prototype, double-click information technology. Information technology appears on your desktop, and you can add, remove, and edit files on it just equally you would with a disk.

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Source: https://support.apple.com/guide/disk-utility/create-a-disk-image-dskutl11888/mac

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