How to Format a Hard Drive on Mac to Work on Mac and PC. You can format an external hard drive or thumb drive to work seamlessly with both Mac and Windows by using the ExFAT file system. You can select the ExFAT format when using the Disk. Connect an external drive to your Mac via USB, USB-C, or Thunderbolt. Open a new Finder window. Open your external drive in that window. Open a new Finder window. Don't close your previous window (open to your external drive), as you'll need it shortly. Click the Go menu and navigate to your Home folder.
- Hard Disk Drive For Macbook Pro
- Portable Disk Drive For Mac
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- Best Backup Drive For Mac
- Disk Drive For Mac Mini
- Your Mac’s hard drive probably has temporary files you don’t need. These files often take up disk space for no good reason. Mac OS X tries to automatically remove temporary files, but a dedicated application will likely find more files to clean up.
- How to erase a disk for Mac - How to erase a disk If you're erasing the disk that your Mac started up from, start up from macOS Recovery. Open Disk Utility from the macOS Utilities window. Choose View Show All Devices from the menu bar. From the sidebar in Disk Utility, select the disk.
- In this tutorial, we learn how to find the C drive on a Mac computer. Unfortunately, Mac does not label their drives with letters like other computer systems do. You can name your drives anything y.
If you read my previous post about how to format an external hard drive, you know that I bought a 2TB Seagate Expansion external drive and managed to create two partitions on the disk — one for Mac backup purposes, and the other for personal use.
In this article, I’m going to show you how to backup your Mac data to an external drive. You should backup your Mac on a regular basis, especially if you’re planning to perform macOS updates.
I did this several weeks ago while preparing my MacBook Pro for the High Sierra update. You may also be interested in taking a look at the issues I encountered during that process just in case you also want to upgrade your Mac to the latest macOS.
Please note that the backup tool that I used is Time Machine, a built-in app provided by Apple. If you want to backup your Mac data without using Time Machine, there are also alternatives worth considering.
Where is Time Machine on Mac?
As I said, Time Machine is a built-in app within macOS ever since OS X 10.5. To find it, click on the Apple logo on the top left corner of your screen, then select System Preferences.
In the Preferences Pane, you’ll see the app located between “Date & Time” and “Accessibility”.
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What does Time Machine Backup?
Time Machine is definitely the easiest way to backup Mac. In addition, the app is created and recommended by Apple. Once you have a timely backup, it’s incredibly easy to restore all or part of your data in case of accidental deletion or a hard drive crash.
So, what kind of data does Time Machine backup? Everything! Photos, videos, documents, applications, system files, accounts, preferences, messages, you name it: They all can be backed up by Time Machine. You can then restore your data from a Time Machine snapshot. To do so, first open Finder, then Applications, and click on Time Machine to continue.
Be aware that the recovery process can be only be conducted when your Mac is bootable.
A Step-by-Step Guide to Backing up Mac to an External Hard Drive
Note: the screenshots below are taken based on macOS 10.12.5 Sierra. If your Mac has High Sierra or an older version, differences may exist, but the process should look similar to what’s displayed below.
Step 1: Connect your external hard drive.
![Disk Drive For Mac Disk Drive For Mac](/uploads/1/3/3/8/133896793/214909176.jpg)
First, use the USB cable (or USC-C cable if you’re on a newest Mac model with Thunderbolt 3 ports) that comes with your external drive to connect that drive to your Mac. Once the disk icon shows up on your desktop (if it doesn’t, open Finder > Preferences > General, and here make sure you’ve checked “External disks” to let them show on the desktop), move on to Step 2.
Step 2: Select the disk for backup.
Now open Time Machine (I tell you how above) and select the disk you want to use. I have partitioned my Seagate drive into two new volumes, “Backup” and “Personal Use”, as you see from the screenshot. I chose “Backup”.
Step 3: Confirm backup (optional).
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If you have used another disk for backup before, Time Machine will ask you whether you want to stop backing up to the previous disk and use the new one instead. It’s up to you. I selected “Replace”.
Step 4: Wait until the process is complete.
Now Time Machine will start to backup all your data. The progress bar gives you an estimate of how much time is left before the backup is complete. I found it a bit inaccurate: Initially, it said “About 5 hours remaining”, but it only took two hours to finish. It’s worth noting that the remaining time may vary from case to case depending on the write speed of your external hard drive.
It says I have to wait 5 hours
Zsight app for mac. After about an hour and a half, it says only 15 minutes remaining
Step 5: Eject your external drive and unplug it.
When the backup procedure is completed, don’t rush to disconnect your device as this could cause potential disk problems. Instead, go back to the main desktop, locate the volume that your external hard drive represents, right-click and select Eject. Then, you can safely unplug the device and put it in a safe place.
![Mac Mac](/uploads/1/3/3/8/133896793/231883437.jpg)
One More Thing
Like any other hardware device, an external hard drive will fail sooner or later. It is advisable to make a copy of the data on your external drive — as they say, a “backup of your backups”! One good option is to use cloud storage services. I now use IDrive (read our full review here), and I really like it because the app is so easy to use, and it also allows me to back up my Facebook albums and photos automatically. Backblaze and Carbonite are also popular options in the market, though I have yet to give them a try.
I hope you find this tutorial helpful. I can’t emphasize enough the importance of data backup these days, especially when my mid-2012 MacBook hard drive died all of a sudden. I’ve also seen cases where my friend’s computer and hard drive failed. You can imagine their desperation. Without a proper backup, it’s really hard to restore data. Although you could try a third-party recovery program like Prosoft Data Rescue and Stellar Mac Data Recovery, chances are they won’t get all your lost data back.
Anyway, the main takeaway I want you to have from this article is this: Backup your Mac with Time Machine and create a second or third copy of those backups if you can.
Disk Utility can fix certain disk problems—for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn’t work properly, or your computer won’t start up. Disk Utility can’t detect or repair all problems that a disk may have.
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If you run First Aid on a disk, Disk Utility checks the partition maps on the disk and performs some additional checks, and then checks each volume. If you run First Aid on a volume, Disk Utility verifies all the contents of that volume only.
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- In the Disk Utility app on your Mac, choose View > Show All Devices.Note: If you’re checking your startup disk or startup volume, restart your computer in macOS Recovery, select Disk Utility in the macOS Utilities window, then click Continue. If you check your startup volume (Macintosh HD), make sure you also check your data volume (Macintosh HD - Data).
- In the sidebar, select a disk or volume, then click the First Aid button . Prezi for mac.If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Otherwise, continue to the next step.
- Click Run, then click Continue.If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. You can click Show Details to see more information about the repairs. Otherwise, you may need to do one of the following.
- If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. You need to check each file in the list of affected files. Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.
- If you can replace a file or re-create it, delete it.
- Solid works for mac. If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted.
- If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data. Iterm for mac os x.
If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.
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If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.
See alsoErase and reformat a storage device in Disk Utility on MacAdd, delete, or erase APFS volumes in Disk Utility on MacPartition a physical disk in Disk Utility on Mac