Czkawka
Storage scenarios

Czkawka Cache Explained: Speed vs Freshness

Caching can avoid repeating some work across scans, but updated files or changed settings may require recalculation. Inspect your installed version's cache behavior.

Short answer: What is the cache used for in duplicate scanning?

Caching can avoid repeating some work across scans, but updated files or changed settings may require recalculation. Inspect your installed version's cache behavior.

What to know before you begin

Caching can avoid repeating some work across scans, but updated files or changed settings may require recalculation. Inspect your installed version's cache behavior. 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: What is the cache used for in duplicate scanning?

  1. Find the cache settings or documentation for your specific frontend.
  2. Run a baseline scan of a known test folder.
  3. Change one copy and run the same scan again.
  4. Rebuild or clear cache only when the tool's documented option calls for it.

Important limitation

Before changing files: Deleting all application data may also remove settings you want to keep.

How to verify the result

Verify modified files are no longer treated as unchanged duplicates. 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

What is the cache used for in duplicate scanning?

Caching can avoid repeating some work across scans, but updated files or changed settings may require recalculation. Inspect your installed version's cache behavior.

What is the biggest risk for this task?

Deleting all application data may also remove settings you want to keep.

How do I check whether it worked?

Verify modified files are no longer treated as unchanged duplicates.

Related Windows guides

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.