Build a backup you can actually restore
Duplicati is useful when copying a folder once is not enough. It can run scheduled jobs, retain earlier file versions and store encrypted backup data locally or at a supported remote destination. A successful upload is only one part of the process: you also need working credentials, an accessible destination and a tested way to restore.
The backup core is free and open source. Optional Duplicati Console services have separate plans, and the storage provider you choose can charge for capacity or transfers. Installing the desktop client does not automatically give you unlimited cloud space. You can use the application without connecting it to the optional management console.
Select a destination and a schedule
A backup job combines source folders, storage settings, encryption and retention rules. Pick a destination you control and give the job its own location. Do not manually remove individual files from an active backup set to make room: its stored blocks and indexes work together. Adjust retention through the application instead.
For a laptop, choose a time when it is normally awake and able to reach the destination. A schedule does not guarantee that a powered-off computer has uploaded its latest work. Check the actual completion history and warning messages. Large first backups may take longer than later runs because more data must be transferred.
Install the Windows desktop package
The project provides Windows packages for x64, ARM64 and legacy x86 systems, alongside separate Linux and macOS builds. Match the package to the processor and use the current platform documentation rather than old instructions for the earlier .NET Framework generation. Most desktop users should start with the GUI MSI package from the official download page.
- Run the installer and launch the desktop application.
- Open its local browser interface and create a clearly named backup job.
- Select a small source folder and a separate destination for the first test.
- Set encryption, retain the passphrase securely and test the destination connection.
- Run the job manually, then restore a sample into a different folder.
Keep the information needed for recovery
Store the encryption passphrase somewhere you can reach if the original PC fails. Export the backup configuration securely and keep destination credentials available. Duplicati can restore from backup files without the original local database, but rebuilding the necessary information takes extra work and time. Without the required encryption secret, encrypted contents cannot simply be reset through an account login.
Review exclusions carefully. A job that intentionally skips a folder will not protect its contents, even if the summary says the run completed. Likewise, copying only a shortcut does not include the document it points to. Test a few representative file types and confirm they open after restoration.
Choose the workflow that fits
FreeFileSync is an alternative when you want to compare folders and manage ordinary copies. VeraCrypt provides an encrypted volume for a working collection of documents. Duplicati's standard backup workflow focuses on recoverable stored versions; newer releases also have distinct sync and disk-imaging modes, whose options should not be confused with an ordinary encrypted file backup.
Start with the simplest job that covers your important files. Keep at least one destination independent of the source disk and periodically repeat the restore test. This makes errors in selection, access or password storage visible while you still have the originals available.
