Well, Mac OS Extended (Journaled) is one of the most reliable as well as trustworthy options for most Mac users as it is genuinely compatible with all Macs. However, you can select between the underlying formats: Well, you can select whatever name you desire, & you must go for the GUID Partition Map for the Scheme in the majority of the cases. Furthermore, make sure to select a name, format, & scheme for your drive.Once done, it will initiate a small pop-up window where you may find a warning message that erasing the drive will remove all the files and data saved on it & that it can not be undone anymore. Now, head over to the top menu, and then hit the option named “Erase”.And, for the best result, you need to choose the disk (the highest option in the external tree). Well, here, you can find it under External Hard Drives. Now, it’s time to select the external hard drive you desire to format.Afterward, choose the “View” located in the top-left corner of the window & then hit the option named “Show All Devices”.And it will invoke the Disk Utility app, where you can find each and every internal & external drive that are combined with your Mac device. Therefore, head over to Spotlight Search, and then write “Disk Utility”, & hit the first option shown on the screen.Here, you need to be aware of the fact that some of the external hard drives require to be plugged into an outlet to work.reboot your mac data recovery Initially, connect an external hard drive to your Mac.Always keep in mind that formatting the drive will erase out all the files and data in it. Note: If you used your external hard drive on a computer, then you have to make sure to back up any files on it. Step Wise Instruction- How to Format a Hard Drive for Mac Device Therefore, if you are attempting to connect an external hard drive to your Mac device, then you may need to format the drive completely before you can use it. The majority of the external hard drives are built to work for Windows PCs.

How to reformat external drive on imac