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#How to reformat hard drive for mac without losing data how to#
#How to reformat hard drive for mac without losing data for mac#
#How to reformat hard drive for mac without losing data mac os#

If you don't see the option first time, disconnect and connect your hard drive to computer again. Solutions: Try to format the external hard drive on Mac again and use the GUID Partition Table.

#How to reformat hard drive for mac without losing data for mac#

I'm attempting to partition a 500gb external HDD for Mac to run bootcamp, but whenever I go into Disk Utility, the option to partition the drive is greyed out. Hi guys,Scoured the net for an existing solution to this problem, but to no avail. Why Can't I Partition My Hard Drive Mac (Errors & Fixes)ĭisk Utility partition greyed out Mac Can't partition (option greyed out) External HDD on macOS Sierra.

#How to reformat hard drive for mac without losing data how to#

Learn how to format Mac hard drive before using. Step 6: Click "Done" when the partitioning hard drive on Mac is finished. Step 5: When the partitions info is set, click "Apply" button.

#How to reformat hard drive for mac without losing data mac os#

Mac OS Extended (Case-sensitive, Journaled) is case sensitive to file folder and names, FAT is used for Windows volumes that are less than 32 GB, ExFAT is used for Windows that are above 32GB. Mac OS Extended (Journaled): HFS+ is used for Mac, and the Encrypted requires a password to encrypt the partition. Tips: what format to choose for separate volumes If you start up hard drive partition to copy DVDs to hard drive or store other data, check out the output DVD file size or data size and then determine the volume size you want. Click separate volumes, enter the name and size or drag the controls to set the size you prefer, and select a format for the partitions. Step 4: Click Add icon to start to partition a hard drive on Mac without losing data. Step 3: Click Partition button on the top of the window. Internal storage drives are under the Internal section, external drives under the External section. Step 2: Select the hard drive on the left pane. Step 1: Open Finder and click Applications, open the Utilities folder and double click Disk Utility. If you can't partition your hard drive on macOS, scroll down to find some possible fixes. Follow these steps to learn how to add an additional partition using Mac built-in tool Disk Utility.

Now, I bet you've made a well-informed decision. How to Partition A Hard Drive on MacBook Air/Pro/iMac with Disk Utility

Partitioning doesn't make much sense if the hard drive has small capacity.

It will take longer time to copy data from one partition to another. However, this is not a big problem as storage is cheaper today. It's common that you do have free space on the hard drive, but there's no enough space left on these partitions. Some space gets lost if you have more than one partition.