How to Use MRT Files Eraser to Permanently Delete Data (Step‑by‑Step)

How to Use MRT Files Eraser to Permanently Delete Data (Step‑by‑Step)

Warning: Permanently deleting files is irreversible. Back up anything you might need.

What MRT Files Eraser does

MRT Files Eraser securely overwrites files so they cannot be recovered by standard tools. It targets individual files, folders, or free space and uses multiple overwrite passes to reduce recovery risk.

Before you begin

• Confirm: Make a local backup of important data you might need later.
• Close apps: Close any program using the files.
• Administrator rights: Ensure you have admin privileges.
• Verify tool version: Use the latest MRT Files Eraser build.

Step‑by‑step guide

1. Install and launch MRT Files Eraser

   • Run the installer and follow prompts.
   • Launch the app from your Start menu (Windows) or appropriate launcher.

2. Choose deletion mode

   • Select one of: File/Folder Erase, Empty Space Wipe, or Full Disk Wipe (if available).
   • For single files, pick File/Folder Erase. For leftover recoverable space, pick Empty Space Wipe.

3. Add items to erase

   • Click “Add” or “Browse” and select files or folders.
   • For multiple items, add them all to the list.
   • Double‑check paths to avoid accidental deletion.

4. Select overwrite method and passes

   • Pick a method (e.g., single pass zeroes, DoD 3‑pass, or 7/35‑pass options if provided).
   • More passes increase security but take longer. A 3‑pass overwrite is a common balance.

5. Choose verification (if available)

   • Enable post‑erase verification to confirm overwrites succeeded. This may add time.

6. Start the erase

   • Click “Erase” or “Start.”
   • The app will warn about irreversibility—confirm to proceed.
   • Wait for completion; do not interrupt. For large data sets or many passes, this can take hours.

7. Review logs

   • After finishing, open the log or report to confirm successful overwrites.
   • Save or export the log if you need proof the data was erased.

8. Securely erase residual data (optional)

   • Run an Empty Space Wipe on the drive containing the deleted files to remove remnants in unallocated space.
   • Consider repeating on system restore or backup drives.

Special cases and tips

• System files / OS drive: For system or boot drives, use a bootable erase environment or the tool’s full disk wipe feature (which may require a reboot).
• Encrypted drives: If the drive is encrypted, securely erasing the encryption keys (crypto‑erase) is faster and effective. Use the tool’s recommended method if provided.
• SSD considerations: SSDs use wear leveling; multiple overwrites may not reliably erase all cells. Use ATA Secure Erase, built‑in crypto‑erase for self‑encrypting drives, or manufacturer utilities when targeting SSDs.
• Cloud / network storage: Deleting local copies does not remove cloud backups. Use the cloud provider’s secure delete or account settings to remove stored copies.

Verification and recovery checks

• After erasure, test that files cannot be recovered using a standard recovery tool (e.g., Recuva) to confirm effectiveness.
• For critical cases, consider a third‑party forensic verification service.

Quick checklist

• Backup important data
• Close programs using target files
• Run as admin
• Select appropriate overwrite method
• Confirm and start erase
• Review logs and optionally wipe free space
• Use SSD‑appropriate methods where needed