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How Do You Back Up to the Cloud?
To back up to the cloud, choose a backup service that keeps older versions, install its app on each computer, select what to protect, and let the first backup finish. Unlike sync, a real cloud backup keeps past versions, so deletions and ransomware do not wipe your only copy. Test a restore before you rely on it.
| Device | Built-in option | Dedicated cloud backup | What to protect |
|---|---|---|---|
| Windows PC | Windows Backup (to OneDrive), File History (to a drive) | Backblaze, IDrive, pCloud Backup and others | Documents, Desktop, Pictures, app data |
| Mac | Time Machine (to a drive or NAS) | Backblaze, Arq with cloud storage, pCloud Backup | Home folder, Photos library |
| iPhone and iPad | iCloud Backup | Google Photos or OneDrive for a second photo copy | Settings, app data, photos |
| Android | Google device backup, Google Photos | OneDrive or Dropbox camera upload | Photos, contacts, app data |
| NAS | Synology Hyper Backup, QNAP Hybrid Backup Sync | Backblaze B2, other object storage | Shared folders, family photos |
Cloud Backup vs Cloud Sync
Sync keeps files identical on every device. Backup keeps a separate, versioned copy you can roll back to. If you delete a folder or ransomware encrypts your files, sync copies the damage everywhere. A backup lets you restore files as they were before.
In ten years of helping people recover files, the single most common regret I hear is “I thought OneDrive was my backup.” Read backup and sync for the full comparison.
Plan Your Backup With the 3-2-1 Rule
The 3-2-1 rule is a simple way to plan:
- 3 copies of your data: the original plus two backups.
- 2 types of storage, such as your computer’s drive and an external drive.
- 1 copy offsite, which is where the cloud comes in.
The US Cybersecurity and Infrastructure Security Agency (CISA) also recommends keeping offline, encrypted backups and testing them regularly, because ransomware often tries to delete reachable backups.
What You Need Before You Start
- A list of what matters: documents, photos, financial records, project files.
- An estimate of the total size. Check your Documents and Pictures folders.
- Your upload speed. A first backup of hundreds of gigabytes can take days.
- A budget. Compare plans on our backup cloud services page.
Step 1: Choose a Backup Service
Look for these features:
- Version history long enough to notice problems, ideally 30 days or more.
- Automatic, continuous or scheduled backup.
- Private encryption key option if privacy matters.
- Restore options, including web download and, for large sets, shipped drives.
- Support for your devices, including external drives if you use them.
Step 2: Install the App and Select Files
Install the backup app on each computer. Most services back up your user folders by default. Add other folders that hold important data, such as a D:Projects drive.
If you use OneDrive, Google Drive or Dropbox, include their folders too. Set them to keep files on the device, because many backup apps skip online-only placeholders.
Still stuck after these steps?
Send us the exact error message or a description of what you see. We use every request to write or update a fix.
Step 3: Run the First Backup
- Plug the computer into power and turn off sleep while plugged in.
- Start the backup and leave it running.
- Expect it to take hours or days, depending on size and upload speed.
If progress stops for a long time, see backup stuck.
Step 4: Set Up Phones and Tablets
- iPhone: turn on iCloud Backup. Our guide to backing up iPhone to the cloud covers the steps.
- Android: turn on device backup in settings and Google Photos backup.
- Photos on any phone: add a second photo backup. See how to back up photos to the cloud.
Step 5: Back Up Your NAS
A NAS at home is not a backup by itself if it is the only place files live. Use Synology Hyper Backup or QNAP Hybrid Backup Sync to send an encrypted copy to cloud storage. Our guide to cloud NAS explains the options.
Step 6: Test a Restore
- Pick a file and a folder.
- Restore them to a new location.
- Open them and check they are complete.
Repeat every three months, and after any major change to your setup.
Common Errors and Fixes
| Problem | Cause | Fix |
|---|---|---|
| Backup never finishes | Huge first backup or slow upload | Prioritise key folders; leave it running |
| Online-only files missing from backup | Placeholders not downloaded | Set folders to keep files on device |
| External drive not backed up | Drive unplugged too long | Connect it regularly |
| Backup stopped after password change | App lost sign-in | Sign in again in the app |
| Not enough cloud space | Plan too small | Upgrade or exclude large media |
Guides in This Cluster
- Compare providers: backup cloud services.
- Windows: how to back up a Windows PC to the cloud.
- Mac: Time Machine backup to cloud.
- Single files: back up file.
- Reviews: Backblaze cloud storage and pCloud Backup.
- Google users: Google cloud backup.
Frequently Asked Questions
What is the difference between cloud backup and cloud storage?
Cloud storage is space where you keep and sync files, like Google Drive or OneDrive. Cloud backup automatically copies your devices to a separate service and keeps older versions so you can restore after loss or damage. Storage is for working with files; backup is for getting them back.
How much does it cost to back up to the cloud?
Costs vary. Some services charge a flat monthly or yearly price per computer with unlimited data, while others charge by storage size. Phone backups often use your existing iCloud or Google storage. Check current prices on each provider’s site, as they change and differ by country.
Is it safe to back up to the cloud?
Reputable backup services encrypt data in transit and on their servers. For extra privacy, choose one that lets you set a private encryption key so only you can unlock backups. Use a strong, unique password and two-step verification on the account, and keep one offline copy for ransomware protection.
How long does the first cloud backup take?
It depends on how much data you have and your upload speed. A few gigabytes may finish in an hour, while several hundred gigabytes on a typical home connection can take several days. Later backups only send changes, so they are much faster. Leave the computer on and awake during the first run.
Do I still need a backup if I use OneDrive or Google Drive?
Yes. OneDrive and Google Drive sync deletions and damaged files to every device, and their recycle bins and version history only last about 30 days. A separate backup with longer version history protects you from mistakes and ransomware that sync alone cannot undo.
Keep your files safe and in sync
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Sources
- The 3-2-1 Backup Strategy (Backblaze)
- #StopRansomware Guide (CISA)
- Back up and restore with Windows Backup (Microsoft Support)
- Back up your files with Time Machine on Mac (Apple Support)
- How to back up your iPhone or iPad with iCloud (Apple Support)
- Back up a Synology NAS to the cloud with Hyper Backup (Synology Knowledge Center)
