How to Back Up Your Computer to the Cloud

Why Cloud Backup Matters

Hard drives fail. Laptops get stolen. Ransomware encrypts everything. A cloud backup is your safety net — and setting one up takes less than 15 minutes.

Option 1 — Windows Backup (Built-In, Free)

1. Go to Settings → Update & Security → Backup
2. Click Add a drive and select an external USB drive OR use File History to back up to a network location
3. Turn on Automatically back up my files

For true cloud backup on Windows, Microsoft 365 subscribers can use OneDrive Backup which protects your Desktop, Documents, and Pictures folders automatically.

Option 2 — Mac Time Machine + Cloud (Built-In)

1. Connect an external drive and open System Settings → General → Time Machine
2. Select the drive as your backup disk — Mac will back up automatically every hour
3. For cloud, enable iCloud Drive to also sync key folders offsite

Option 3 — Backblaze (Recommended Third-Party, ~$9/month)

Backblaze automatically backs up your entire computer — every file, every folder — continuously in the background. It is the simplest set-and-forget solution.

1. Go to backblaze.com and sign up
2. Download and install the Backblaze client
3. Sign in — it starts backing up immediately
4. Your first full backup may take a day or two depending on how much data you have

The 3-2-1 Rule

IT professionals follow this rule for reliable backups:

• 3 copies of your data
• 2 on different storage types (e.g., internal drive + external drive)
• 1 offsite or in the cloud

How to Verify Your Backup Works

A backup you have never tested is not a backup. At least once a year, restore a few random files from your backup to confirm they open correctly.