 Today we will show you how to use Time Machine to backup files on your Mac. Time Machine is a built-in backup feature in OS X. Time Machine backs up all of your files to an external hard drive so that they can be restored at a later date or so you can see how they looked in the past. Time Machine keeps hourly backup for the past 24 hours, daily backups for the past month and weekly backups for all previous months. If you do not have the Time Machine icon displayed at the top of your Mac like mine here, then you will need to go to System Preferences and select Time Machine from here. Select the disk to backup to. We also need to ensure we select the Encrypt Backups option. Because this computer is already being backed up to an external drive, it has come up with a notification box. Now we will need to select a backup password. It is best to use a complex password here. Now we select Encrypt Disk. This procedure may take a while depending on how much data you have to be backed up. Once this process is completed, the Mac will automatically backup whenever the external drive is connected. This concludes our tutorial on using Time Machine to backup files on your Mac. Thank you for watching.