Time Machine is software that’s built in to all Macs. It’s been around for quite a while. It’s an indispensable tool, and it’s free!
Erase Your Drive
Your Mac has a really useful application called Disk Utility. You’ll use it to erase your drive.
Restore Deleted Files
Time Machine is really magic software. You can go back in time to restore files, folders and more. You can even restore your whole computer from a Time Machine backup.