Backup Storage

Use an External Hard Drive for Duplicacy Backups

An external drive works as a storage destination if it remains available during scheduled jobs.

Quick answer:

An external drive works as a storage destination if it remains available during scheduled jobs.

Steps for Windows

  1. Connect the external USB drive and verify its Windows drive letter.
  2. Create a dedicated Duplicacy storage directory on it.
  3. Add the storage in the Web Edition and choose a test backup source.
  4. Perform a backup and safely disconnect the drive after the task ends.

How to verify the result

Reconnect the drive and restore a test revision.

Important limitation

Scheduled jobs may fail while the USB drive is disconnected or its letter changes.

Why this matters

The practical goal is a recoverable Duplicacy revision, not just a successful-looking progress indicator. Keep your source, backup destination, Backup ID and necessary credentials documented. If this workflow changes your retention or storage configuration, verify a restore before applying it to important data.

Frequently asked questions

How do I use an external hard drive for backups?
An external drive works as a storage destination if it remains available during scheduled jobs.
How can I confirm this worked?
Reconnect the drive and restore a test revision.
What should I avoid?
Scheduled jobs may fail while the USB drive is disconnected or its letter changes.

Primary documentation: Duplicacy Web Edition User Guide · Developer download · Last source review: November 2, 2026. This is an independent editorial checklist, not a claim of hands-on testing.

Set up your Windows backup

Choose the right edition, verify the installer, then test a restore.

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