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# How to clean junk files with eclean Junk Cleaner

Junk Cleaner scans selected cleanup categories and helps you remove files that commonly build up over time, such as temporary files, cache, and recycle bin contents. It is the best Cleaner tool to start with when you want routine maintenance rather than deleting specific personal files.

| Junk Cleaner is for routine cleanup. Use Large Files when you want to inspect big personal files, and use File Shredder when secure deletion is the goal.

### How to clean junk files with Junk Cleaner

1. **Open Junk Cleaner:** Go to **Cleaner > Junk Cleanup**.
2. **Select categories:** Choose the categories you want eclean to scan.
3. **Start the scan:** Click **Search for junk** and stay on the page while it runs. eclean blocks navigation during the scan.
4. **Review the results:** Use **Simple** for a quick summary or **Detailed** when you want to inspect individual results.
5. **Deselect anything you want to keep:** Remove any category or item you do not want cleaned.
6. **Clean the selected items:** Click **Clean now**.
7. **Review the summary:** Use **Continue to Summary** to see space freed, categories processed, and cleanup streak details.

### Before you click Clean now

* If you are troubleshooting an app, keep its logs or cache until support no longer needs them.
* If you leave the results page before cleaning, eclean asks for confirmation because returning discards the scan results.
* Some files may be skipped if they are locked by a running app or disappear before cleanup starts.

### Technical deep dive

Junk Cleaner scans cleanup entries by category and returns structured scan results. Each result can include file and directory paths, registry keys, total size, selected size, selected count, warning state, and optional warning text from cleanup metadata.

Some entries are selected by default and others require advanced opt-in. eclean carries that selection state into the results page so **Simple** mode can show category-level choices while **Detailed** mode can expose individual items.

When you clean selected results, the frontend sends only selected file paths and selected registry entries back to the backend. File cleanup removes files directly and removes empty directories only when they are empty, so non-targeted contents are not removed just because a parent folder was scanned. Registry cleanup validates registry paths against protected locations before deleting keys or values.

Cleaner History records successful cleanup summaries through eclean's shared operation journal. A cache folder or temporary file can reappear after cleanup if Windows or an app recreates it.