How secure file erase works in eclean

Secure file erase is the stronger deletion behavior used when you want a file to be much harder to recover. It is useful for sensitive files, but it should not be used casually because the point is to make recovery difficult.

How secure file erase works in eclean

1. Choose the right file: Use secure erase only for files or folders you are sure you no longer need.
2. Use File shredder: Open Cleaner > File shredder when you want secure deletion for specific files.
3. Add the files or folder: Build the shred list using Add files or Add folders.
4. Enable Secure mode: Turn on Secure mode and read the warning confirmation.
5. Start the erase: Click Shred now and confirm the final destructive action.
6. Wait for completion: Stay on the page until eclean finishes and review any failed paths.

What secure erase can and cannot do

• Secure erase is designed to reduce recoverability for the files you selected.
• It does not erase copies stored in cloud sync folders, backups, email attachments, or other devices.
• The exact result can depend on drive type, Windows behavior, and whether another app still has the file open.

Technical deep dive

Secure file erase uses the same secure deletion backend as File Shredder's Secure mode. The implementation opens the file for writing, overwrites it in 4096-byte chunks, syncs the file after overwrite passes, verifies selected final pattern writes, writes additional random data, and then removes the file.

For folders, eclean recursively applies secure deletion to the folder contents and removes the directory after the contents are processed. If a file is locked, inaccessible, or fails verification, that path can fail while other paths continue.

The implementation is transparent about its limit: it operates on the selected local file path. It does not guarantee removal from SSD wear-leveling history, cloud storage, backup software, Windows restore data, another drive, or another copy of the same file.

Updated on: 12/06/2026