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Deleting Partitions on a SSD

I have a SSD which I partitioned into three sections. I am now wanting to take out the partitions. I have deleted all the information from the three sections. I have used Disk Utility to erase all three sections. Each section still shows some MB of information, however when I open them on the computer nothing shows up.


What I am now trying to accomplish is to remove the partitions so I am back to one single storage unit. When I am in Disk Utility I am unable to click on the partition button, it is grayed out. When I put the mouse over the button it says Disks with master boot partition maps cannot be partitioned.


How do I remove the partitions?

MacBook Pro Retina

Posted on Oct 13, 2021 8:19 AM

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5 replies

Oct 13, 2021 8:28 AM in response to Rudy_S1

Rudy_S1 wrote:

I have a SSD which I partitioned into three sections. I am now wanting to take out the partitions. I have deleted all the information from the three sections. I have used Disk Utility to erase all three sections. Each section still shows some MB of information, however when I open them on the computer nothing shows up.

What I am now trying to accomplish is to remove the partitions so I am back to one single storage unit. When I am in Disk Utility I am unable to click on the partition button, it is grayed out. When I put the mouse over the button it says Disks with master boot partition maps cannot be partitioned.

How do I remove the partitions?


You do not say what macOS or how the drive is formatted—


DiskUtility is not always effective...


In the new apfs All volumes share space with the Container, without penalty

Add, delete, or erase APFS volumes in Disk Utility on Mac






If you actually partitioned your drive and can not regain all the space—

You can erahttps://support.apple.com/guide/mac-help/restore-files-mh11422/mac


GUID partition map /APFS file system


reinstall macOS from macOS Recovery - https://support.apple.com/en-us/HT204904


restore your user data from a backup— restore items backed up with Time Machine

https://support.apple.com/guide/mac-help/restore-files-mh11422/mac


or other backup.

Deleting Partitions on a SSD

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