Two ways to back up your iPhone: iCloud and your computer

You can back up your iPhone in two ways: to iCloud (Apple's cloud storage), or directly to a Mac or Windows computer using iTunes or Finder. Backing up to your computer stores everything locally on a drive you control, which is useful if you want a copy that doesn't depend on an internet connection or a cloud subscription. The process differs slightly depending on whether you use a Mac or Windows PC, and which version of macOS or iTunes you have.

Both methods create a complete snapshot of your iPhone — apps, settings, photos, messages, health data, and everything else. If your phone is lost, stolen, or stops working, you can restore from either backup and get back to where you were. Most people use both: a computer backup for security and a local copy, plus iCloud as a second backup that syncs automatically.

Key Takeaways

  • Mac users with macOS Catalina or newer use Finder to back up; older Macs and all Windows PCs use iTunes.
  • Connect your iPhone to your computer with a USB cable, unlock the phone, and tap "Trust" when prompted.
  • A full backup takes 10 to 30 minutes depending on how much data is on your phone and how fast your connection is.
  • You can set up automatic backups to run every time you connect your phone, or back up manually whenever you choose.
  • Encrypted backups include passwords and health data; unencrypted backups do not, so encrypted is usually the safer choice.

Back up on a Mac using Finder

If you have a Mac running macOS Catalina (released in 2019) or newer, use Finder instead of iTunes. Connect your iPhone to your Mac with a USB cable. Your phone will appear in the Finder sidebar under "Locations." Click it, and you'll see an iPhone summary page with backup options at the top.

Under "Backups," choose "Back up all of the important data on your iPhone to this Mac." You can also check the box for "Encrypt local backup" if you want passwords and health information included — this is recommended. Click "Back Up Now" to start. The backup runs in the background; you can keep using your Mac, but don't disconnect the phone until it finishes. You'll see a progress indicator in the Finder window.

To set up automatic backups, check the box for "Automatically back up when this iPhone is connected." After that, every time you plug in your phone, a backup will start without you having to do anything. You can still back up manually at any time by clicking "Back Up Now" again.

Back up on a Windows PC or older Mac using iTunes

Windows PCs and Macs older than Catalina use iTunes. read iTunes from Apple's website if you don't have it, or update it to the latest version. Connect your iPhone with a USB cable. iTunes will open automatically, or you can open it yourself. Your phone appears as a device icon near the top left of the iTunes window.

Click the device icon, then look for the "Backups" section. Choose "This computer" to back up locally (not to iCloud). Check "Encrypt iPhone backup" if you want to include passwords and health data. Click "Back Up Now." The backup runs in the background; don't unplug your phone until the progress bar finishes and disappears.

To automate backups, check the box for "Automatically back up when this iPhone is connected." After that, iTunes will back up your phone every time you connect it. You can also back up manually at any time by clicking "Back Up Now" again.

What happens when you first connect your iPhone

The first time you plug your iPhone into your computer, a dialog box appears on the phone asking whether you trust this computer. Tap "Trust" — if you tap "Don't Trust," the backup won't work. You may also be asked to enter your iPhone passcode. Do this on the phone itself, not on the computer.

After you tap Trust, the computer may ask for permission to access your iPhone. On a Mac, you might see a prompt asking whether to allow Finder to access your photos or contacts. Click "Allow" or "OK." These permissions let the backup include all your data. If you skip these steps, the backup will be incomplete.

Encrypted versus unencrypted backups

An encrypted backup includes your passwords, health data, home automation settings, and other sensitive information. An unencrypted backup includes everything else — apps, photos, messages, contacts, calendar — but not passwords or health data. If you restore from an unencrypted backup, you'll have to re-enter passwords for email, apps, and websites.

Encrypted backups are protected by a password you set. If you forget this password, you cannot restore the backup. Write it down or store it somewhere safe. Most people choose encrypted backups because the extra security is worth the small risk of forgetting the password. If you're not sure, encrypted is the safer choice.

How long a backup takes and what to do while it's running

A full backup typically takes 10 to 30 minutes, depending on how much data is on your phone and how fast your USB connection is. Newer iPhones with fast USB 3 cables back up faster than older phones with USB 2 cables. A phone with 64 GB of photos and videos takes longer than one with mostly apps and messages.

You can use your computer while the backup runs. Don't unplug the iPhone, close the backup window, or put the phone to sleep. If you need to move the phone, wait until the backup finishes. If the backup is interrupted, it will start over from the beginning the next time you connect.

Where your backup is stored on your computer

On a Mac, backups are stored in a hidden folder: ~/Library/process Support/MobileSync/Backup/. You don't need to find this folder yourself — Finder and iTunes manage it automatically. If you want to see it, open Finder, press Command-Shift-Period (the period key) to show hidden files, then navigate to your home folder and look for Library.

On Windows, backups are stored in C:\Users\[Your Username]\AppData\Apple\MobileSync\Backup\. Again, iTunes manages this folder for you. You can back up to an external hard drive by changing the backup location in iTunes settings, which is useful if your computer's main drive is running out of space.

Frequently Asked Questions

Can I back up my iPhone wirelessly without a cable?

No, computer backups require a USB cable. iCloud backups happen wirelessly over Wi-Fi, but those are separate from computer backups. If you want wireless backups, use iCloud instead. Computer backups must be plugged in.

What if I see an error message during backup?

The most common errors are "USB connection lost" (try a different cable or port), "trust not established" (tap Trust on your phone again), or "backup could not be completed" (restart both your phone and computer, then try again). If the error persists, update iTunes or macOS to the latest version.

Do I need to back up if I already use iCloud?

iCloud backups are convenient, but a computer backup gives you a second copy that doesn't depend on your iCloud storage space or internet connection. Many people use both for extra security. If your iCloud account is hacked or your subscription lapses, your computer backup is still there.

Can I restore from a backup on a different computer?

Yes, but only if you have the backup file. On a Mac, you can move the backup folder to another Mac and restore from it. On Windows, the process is more complicated. It's easier to restore from iCloud, which works on any computer. If you need to restore on a different computer, iCloud is your best option.

How often should I back up my iPhone?

If you set up automatic backups, your phone backs up every time you connect it — usually daily or weekly depending on how often you plug in. If you back up manually, aim for at least once a week, or more often if you add important data like photos or messages you don't want to lose.