How to Back Up Photos to an External Hard Drive (UK Guide)

Short answer: to back up photos to an external hard drive, plug the drive into your laptop, copy your Pictures folder across, check the files opened, then keep a second copy. That is the whole routine — and it is what finally gives you a second copy instead of trusting one laptop with every family photo.

If your camera roll is full and the cloud keeps asking you to pay more each month, you are not alone. Backing up to an external hard drive is still the most practical fix for a large photo library: one upfront cost, offline access, and you decide who sees the files. Here is a calm, step-by-step routine that works on Windows and Mac.

Why one copy on a laptop is not a backup

Laptops get dropped, stolen or spill coffee, and the fear that keeps new parents up at night is real: if the only copy of your child's early photos lives on one machine, a single failure loses them for good. An external drive gives you that crucial second copy at home, without a monthly subscription.

You do not need to understand NAS boxes or backup jargon to do this well. If you can drag a folder from one window to another, you can protect years of family photos and video.

What you need before you start

• An external drive with room to grow — often 2TB for a family with several phones.
• The right cable for your laptop (USB-A, USB-C, or a small adapter).
• Half an hour of quiet time for the first full copy.
• A simple folder plan you will actually keep to.

Step 1: See how much you already have

On iPhone, open Settings, then General, then iPhone Storage. On Android, check Storage settings for your photo and video totals. On a laptop, add up your camera folders and Downloads. Round up, then add some headroom for next year's holidays and school events — libraries grow faster than people expect.

Step 2: Pick a folder layout you will keep

Keep it boring and dated, for example a Photos folder with a subfolder per year, and a Videos folder alongside. Consistency matters more than a perfect system. Name the drive something obvious like "Family Photos Backup" so nobody formats it by accident.

Step 3: Copy the files safely

Windows

Connect the drive, open File Explorer, and drag your Pictures folder onto it. For very large libraries, let the copy finish fully before touching anything, then eject safely before you unplug.

Mac

Use Finder to drag your Pictures folder or export your Photos library. If the drive shows as read-only, it is formatted for Windows — reformat to exFAT first (which erases it, so do this before copying anything on).

From your phone

Import to the laptop first — using the Photos app on Windows or Image Capture on Mac — then copy across to the drive. Do not delete the phone copies until you have checked the drive copy opens.

Step 4: Check it worked — do not just trust "copy finished"

Open a few random folders and make sure the photos actually display. Compare the total size on the drive with what was on the phone. People who skip this step often discover missing months only after they have deleted the originals — exactly what happens if you assume rather than check.

Step 5: Add a second copy (the 3-2-1 rule)

One drive alone is still a single point of failure. The simple pattern the experts use is 3-2-1: three copies of anything important, on two types of media, with one kept off-site — a relative's house or an encrypted cloud folder. You do not need an expensive setup on day one; a second drive kept elsewhere beats a perfect plan you never start.

Is one external hard drive enough for photo backup?

As your only backup, one drive is a big improvement on nothing, but it is not the full picture. Treat the drive as your main home copy and add one more copy over time. For choosing the drive itself, our portable hard drive buying guide covers capacity, ports and Mac/PC setup.

A simple 2TB drive for years of family photos

For a first family backup, the BackupDrive 2TB Portable External Hard Drive keeps the setup simple: 2TB of room for years of photos and video, USB bus-powered so there is no separate power supply, and plug-and-play with Windows 10/11 and macOS 10.12 and later. It includes data rescue support if something goes wrong — reassuring when the photos are irreplaceable — plus a 12-month UK warranty. It is £96.26 inc. VAT with free UK delivery and 30-day returns, rated 4.7 out of 5 from 320 reviews.

Frequently asked questions

How do I back up photos from my laptop to an external hard drive?

Plug the drive in, open File Explorer on Windows or Finder on Mac, and drag your Pictures folder onto the drive. Let the copy finish fully, check a few folders open, then eject safely before unplugging.

Is one external hard drive enough for photo backup?

It is a big improvement on a single laptop copy, but not a complete backup on its own. Treat the drive as your main home copy and add a second copy over time, following the 3-2-1 rule.

What happens if my laptop dies before I back up?

If the only copy of your photos is on that laptop, a failure can lose them for good, which is exactly why a second copy on an external drive matters. Some drives also include data rescue support as an extra safety net.

How much storage do I need for family photos and video?

For a household with several phones, 2TB is a sensible starting point that leaves room to grow. Check your current photo and video totals first, then add headroom for next year rather than buying twice.