For a large personal library, use an automatic local backup to an external drive and keep a separate off-site or cloud copy of irreplaceable photos and documents, in line with National Cyber Security Centre guidance on keeping both cloud and removable-media copies. A portable solid-state drive (SSD) suits frequent transfers, while network-attached storage (NAS) suits backups from several computers; neither replaces an independent copy or a test restore.
Family photos, scans and personal records can be difficult to recreate after a device fails or files are deleted. The National Cyber Security Centre advises considering both a cloud copy and removable media for irreplaceable photos and videos.
When files are spread across folders, a one-off manual copy is easy to leave out of date. Microsoft Support describes regular File History backups to an external drive or network location, while Apple Support provides Time Machine guidance for Mac backup disks.
If the main collection lives in a photo service or synchronised folder, check how to download the originals into storage you control. Microsoft Support and Apple Support explain that changes or deletions can propagate through OneDrive and iCloud Photos respectively.
An external hard drive can serve as a regular local backup destination; a portable SSD addresses frequent file transfers, and NAS offers a shared network destination for several computers. Cloud storage can provide an off-site copy, but a synchronised library should not be your only means of recovering an earlier file.
| Concern | What to check | Who this matters to |
|---|---|---|
| Recovering files after a failure or deletion | Plan a separate copy and check that you can restore individual files; keep a copy off-site or disconnect removable media when practical. | If family photos or records cannot be recreated, I need more than a copy beside the computer that could be lost in the same incident. Around 36% of consumers would put recoverability and separate copies first. |
| Capacity and automatic backups | Measure the files to protect, identify folders outside the usual libraries, and allow space for growth and retained versions. | With photos and documents spread across folders, I need backups that keep up without relying on me to remember each new file. For around 29% of consumers, complete, repeatable coverage would be the primary need. |
| Independent cloud export | Check how to download originals, then open a sample of the exported photos and documents before relying on the local copy. | When my main photo library is online, I want a copy I can recover without depending on a synchronised account. Around 21% of consumers would prioritise that independent export. |
| Portable transfers and compatibility | Check the computer connection, cable and required drive format, particularly if the drive will also be used for Mac backups. | If I regularly move a large library between devices, a drive I can connect and use in that workflow matters most. Portable transfer and compatibility would lead the choice for around 14% of consumers. |
Microsoft Support says OneDrive synchronises changes and deletions between its computer folder and website; Apple Support says deleting an iCloud Photo also removes it from iCloud-enabled devices.
Keep an independently managed export or backup of important files, and check that you can restore from it.
The National Cyber Security Centre advises disconnecting removable media when it is not in use because malware can reach an attached backup drive.
Where practical, safely disconnect a drive after its scheduled backup finishes and maintain another off-site or cloud copy of irreplaceable files.
Online-only cloud files may not occupy space on the computer, according to Microsoft Support, and backup history also needs room. Apple Support recommends a Time Machine disk with at least twice the Mac's storage capacity.
Count local folders, cloud originals and files imported from other devices before choosing storage; allow for future files and the versions you intend to retain.
Apple Support says a Windows-formatted disk may need reformatting for Time Machine, which permanently removes the data already on it.
Verify that the existing files are safely copied elsewhere before changing a drive's format.
A brand to consider for an external drive used as a local backup destination.
A brand to consider when a portable SSD fits a frequent-transfer workflow.
A brand to consider for a household NAS shared by multiple computers.
These portable SSDs and external hard drives can serve as local destinations for photo and document copies. Choose capacity against the files you need to protect, confirm your backup software and restore workflow, and plan a separate copy for files you cannot replace.
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Consider this local drive if you need to carry a copy of a photo library between devices.
The listed variant has 1 TB capacity and a USB Type-C 3.2 Gen 2 connection. Check that its capacity and your intended backup and restore software fit your workflow.
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Consider this local backup destination for a Mac photo and document library.
This portable external hard drive is the 5 TB variant. Check the intended Mac backup method and drive format before using it, particularly if it already contains files.
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Consider this portable hard drive for a separate local copy of a personal photo and document collection.
The listed capacity is 2 TB. Confirm that it leaves room for your library and retained versions, and check backup-software compatibility before relying on an automatic schedule.
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Consider this local storage option if you regularly carry a photo library between computers.
It is the 2 TB portable SSD variant. Check connection and operating-system compatibility, along with the software you plan to use for backup and restoration.
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Consider this local drive when a larger photo and document collection needs its own storage destination.
The listed variant has 4 TB capacity and a USB 3.0 connection. Check the required format and backup method before using it with a Mac, and preserve any existing files before reformatting.
Start by measuring the photos, documents and other files you need to protect, then allow room for growth and retained versions. For Time Machine, Apple Support recommends a backup disk with at least twice the Mac's storage capacity; size other workflows against the files and history you intend to keep.
Check both backup methods and the drive format before planning to share it. Apple Support says Time Machine cannot back up to a Windows-formatted disk and that reformatting permanently removes existing data, so protect any files already on the drive before making changes.
Cloud storage can provide an off-site copy, but a synchronised library is not necessarily an independent archive. Microsoft Support says OneDrive synchronises changes and deletions, while Apple Support says iCloud Photos deletions propagate to connected devices; keep a separately managed copy of important files.
Use the service's download or export option, then check that a sample of the originals opens from your local storage. Google Account Help notes that a requested data archive may miss changes made before the archive is created; Apple Support describes downloading iCloud originals to a Mac, and Amazon Customer Service says its browser download requires selecting items within an album rather than downloading the entire album in one action.
Try restoring a few important files after setting up the backup and again when you change your storage device, software or photo workflow. Restore them to a separate location so you can check the result without overwriting the files you use every day.