We also touch on alternate backup methods.
Connect an external hard drive or USB flash drive to your Mac.
Locate the file or files you want to back up.

snag the files you want to back up, and presscommand+C.
launch the USB flash drive or external hard drive.
Presscommand+Vto paste your copied files.

Repeat this process to back up any other essential files.
Click theAppleicon in the upper-left corner of the screen, and selectSystem Preferences.
grab the disk you want to use, and clickUse Disk.

you’re able to select a local USB drive or storage that’s connected via AirPort.
If you want to encrypt your data, select that option during this step as well.
If prompted, clickEraseto format the disk for use with Time Machine.

Clicking erase will format the disk, and you will lose any data currently stored there.
You will not see this step if your disk is already compatible for use with Time Machine.
smack the checkbox next toShow Time Machinein menu bar.

Click theTime Machineicon (looks like a clock with a counter-clockwise arrow around it) in the menu bar.
Time Machine will automatically back up your hard drive one time.
Each time it runs, it will copy all your files without overwriting the previous copy.

If you’ve already set a backup disk, skip to step 7.
If your disk is already formatted for use with Time Machine, you won’t see this step.
Check theBack Up Automaticallybox.

exit the Time Machine preferences window.
Time Machine will now automatically back up your files every hour as long as the backup drive is connected.
This is a cloud-based service operated by Apple that you get access to as an Apple user.

FAQ
Ideally, you should back up your Mac on a regular basis.
Your iPad can bebacked up on a Macthrough iTunes, iCloud, or by using compatible third-party software.
To import exported mailboxes, selectFile>Import Mailboxes> then choose the mailbox file.








