Select the external disk you connected as the backup disk from the list.

Click on the Select Backup Disk button (it's also named Select Disk in some systems).Click Apple menu -> select System Preferences -> click Time Machine.Step 2: open Time Machine and select disk. Please read the following ways carefully to know how to backup Mac yourself (these ways work for how to backup MacBook to external hard drive, how to backup iMac to external hard drive, etc.). It’s easier to access an external drive: the external drive can be accessed from any devices while you can’t access the internal drive if your Mac is crashed/dead.The internal hard drive, especially the old ones, can get full easily.The backup should be made regularly and it will occupy much disk space.Why backup to external hard drive, not internal hard drive? There are mainly 3 reasons: How to backup Mac to external hard drive is asked frequently when users have valuable data stored on Mac. Backup is a simple and the most effective way to prevent important data loss. It is saved elsewhere on computer or external device so that it can be used to restore the original data when they are missing or corrupted. How to Backup Mac to External Hard Drive without Time Machine (4 Ways)īackup, also called data backup, is actually a copy of computer data.This page on MiniTool will show you how to backup Mac to external hard drive in 5 ways. Well, backup is the most direct and effective way to prevent data loss and avoid unnecessary problems caused by it.

Data loss is a common and eternal topic on the internet.

Backup is very important for computer usage since your business data or personal data may be lost suddenly from a computer.

Backup external hard drive time machine