• Enter a name for the external hard drive in the Name field. • Click the Erase button. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement.

By default, the maximum disk space is already selected and it is recommended to leave it at the maximum disk space. Note: To create multiple partitions, select or type a specific number of megabytes (MB) for the first partition and continue to the next step. Once done with this process, the remaining space will display as unallocated space. Now, create another New Simple Volume in the remaining unallocated space for the next partition. For example, on a 2TB drive, set the volume size to 1000000 (1 TB) and continue to the next step. When done, begin the New Simple Volume process again and select the remaining capacity, the unallocated space, for another 1TB partition. • Assign a drive letter to represent the volume being created, and click Next.

You only need one. There are a couple of file systems both can read but they don't handle 1Tb very gracefully.

And the other partition as the backup to the second Mac when it is plugged in there. In addition Time Machine can be used to backup one Mac and restore onto another. This is particularly useful when you have upgraded your Mac and want to restore your files to your new Mac. By telling Time Machine what drive and/or partition to backup to and restore from you have full flexibility. • Can I use My Passport for Mac with a PC? Yes, but to do that you need to create a partition that the PC can read.

What this is going to do is set the default email account for any new email message composition in the Mail app. That includes new mail compositions created from within Mail.app and also elsewhere in Mac OS X, like a mailto link in a web browser or another app. Mac os default app. Steps to Change The Default Email Client on Mac OS Step 1: To set the default email client, you need to first open the Mail app and look for ‘ Preferences ’ in the Mail menu and click on this option. Choose Preferences from the Mail menu, then click General. Or, if you're prompted to set up an email account, add your account, then choose Preferences from the Mail menu.* Choose your email app from the ”Default email reader” pop-up menu. * You can also set your default email app in the preferences of your third-party email app. How to set you default email reader. Mail is likely the default email app on your Mac, but just in case you have others downloaded, you can set the default reader. Here's how: Launch Mail from your dock or the Finder. Click Mail in the menu bar at the top of the screen. Click Preferences. Click the dropdown next to Default Mail Reader. If you want to change a default app other than your browser or email client then you can still do so. Open up Finder, navigate to the file in question and right-click it to bring up the contextual.

Click the 'File System' drop-down menu and select 'NTFS' if you plan to use the drive only in Windows operating systems. If you also need to use the drive on a Mac, select 'exFAT.' Optionally, enter a name for the drive in the Volume Label field. This name helps identify the drive in File Explorer.