Now you don't have to go out and buy hard drives for every computer you use.
Partitioning an external hard drive allows you to have separate drives for Mac, PC, and any other operating system. If you don't want the backup take up all the space on the drive and need to store other data on this drive, follow to partition external hard drive on Mac with Time Machine. Time Machine will use up all the storage on the external hard drive.If so, back up your current data on the external storage device as reformatting will erase all the data. If you formatted it as Windows format other improper formats, you have to erase and reformat the external hard drive with Disk Utility. You external hard drive should be formatted as Mac OS Extended (Journaled).
EXTERNAL DISK FORMAT FOR MAC FOR MAC
You can check the box 'Encrypt Backup Disk' and enter password to encrypt the portable hard drive. Step 1: Connect external hard drive to Mac via USB, FireWire, Thunderbolt or so, and a message will pop up, asking whether you want to use the drive to back up with Time Machine. In Disk Utility, 'unmount' (don't 'eject') the Time Machine partition. Also, beware that following these steps will delete everything on your external drive. These two items could both have identical names, e.g., 'Time Machine,' but they represent different things.If you select the one below it, the Partition option will be greyed out and become unclickable. Make sure you select the disk icon right under 'External'. Open the Disk Utility app and highlight your external hard drive. Step 1: Highlight your drive and click 'Partition' in Disk Utility.You have to format your new external hard drive for Mac before backup. Follow Mac backup steps with Time Machine below. It's one of the easiest way to save your Mac data to SSD or HDD, including mac apps, media files, DVD backup, documents and other. Time Machine is a built-in tool on Mac, which works with internal and external disk drives to backup and restore data for macOS.
EXTERNAL DISK FORMAT FOR MAC HOW TO
How to Backup MacBook Air/Pro/iMac to External Hard Drive with Time Machine