Yes, when drives are mounted as ordinary filesystem paths, they can be included in a scan. Check connection stability before doing anything destructive.
What to know before you begin
Yes, when drives are mounted as ordinary filesystem paths, they can be included in a scan. Check connection stability before doing anything destructive. The project offers several scanning modes and the current version may place controls differently in Krokiet versus the older GTK GUI. Follow the meaning of the option you see, not just a screenshot from a different release.
For Windows, verify that your chosen folder is accessible and that the correct graphical frontend is running. The recommended approach starts with a small test set, especially when an action could rename, move, delete or link files.
Step-by-step: Can Czkawka compare duplicate files on external drives?
- Connect the drive and confirm it appears in File Explorer.
- Add the external drive and selected local folder to the scan scope.
- Scan without deleting and inspect full paths including drive letters.
- Eject the drive only after scanning and any file actions finish.
Important limitation
How to verify the result
Verify the retained files and backups on both storage devices. A scan's estimated savings or the presence of a matching group does not by itself establish which copy should be discarded.
If the procedure does not match your screen, inspect the project's own FAQ and troubleshooting notes and identify the exact release and frontend first.
FAQ
Can Czkawka compare duplicate files on external drives?
Yes, when drives are mounted as ordinary filesystem paths, they can be included in a scan. Check connection stability before doing anything destructive.
What is the biggest risk for this task?
USB disconnections can interrupt operations and leave partial moves.
How do I check whether it worked?
Verify the retained files and backups on both storage devices.
Related Windows guides
- Czkawka on Network Drives and NAS Shares
- How to Scan Millions of Files More Reliably
- Czkawka Scan Speed on SSD vs HDD
- Czkawka Cache Explained: Speed vs Freshness
Editorial notes reviewed: November 1, 2026. Version-specific facts are based on the developer's release and FAQ. This guide is educational; it is not a guarantee about a third-party download.
Try Czkawka on Windows
Check the asset name and keep a backup before running a file cleanup operation.
See our download and safety instructions first.