Secure Delete File Forever using Free File Shredder Software
Deleting sensitive file using Windows recycle files is not secure way because is only removed the master file index on the hard disk only. But the 1s and 0s of the deleted files are still remaining on your hard disk which can often be recovered with a free data recovery program. Unless the 1s and 0s of sensitive files index on hard disk has been overwritten by other application.
The only sure way to permanently erase sensitive material is to overwrite the disk space with new data. So how can you delete files permanently and forever on your computer ? Over here, i summarize a list of file shredder freeware to wipe off or delete files permanently from your hard drive.
List of Free File Shredder to secure delete file forever :
1. File Shredder from FileShredder.org
A powerful file shredder program that surpasses commercial file shredders out there. The developer of this file shredder utility believes such a utility can permanent and safe removal of confidential documents is a matter of basic right to privacy.
This File Shredder you can choose between 5 different shredding algorithms, each one gradually stronger than the previous one. It also has integrated Disk Wiper which uses shredding algorithm to wipe unused disk space.
Download File Shredder program from File Shredder
2. Eraser
Eraser is an advanced file shredder tools that allow you to completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns. This free file shredder works with Windows 95, 98, ME, NT, 2000, XP, Vista, Windows 2003 Server and DOS.
Eraser Free file shredder program using several patterns for overwriting are based on the Guttmann (Default), Pseudorandom Data and US DoD 5220-22.M methods.
Download Eraser - Free File Shredder program
3. SDelete
Free file shredder program that developer by Microsoft. It able securely deletes files so they can not be recovered. Useful if you have files you want to be sure they are deleted forever. Plus more, this free microsoft file shredder program is implements the Department of Defense clearing and sanitizing standard DOD 5220.22-M to wipe off your data forever.
Download SDelete - Free Microsoft File Shredder program
4. Active@ KillDisk
This file shredder program allows you to wipe all data on a physical drive either run from bootable CD, program files or DOS. Meanwhile, the best part of Active@ KillDisk is display all information about the drive, including data present in any sector on the drive before wiping. However, the file shredder program only writes zeros to the drive but you upgrade the wipe data technology like Standard DOD 5220.22-M with 50USD.
Beside that, you can check out iolo DriveScrubber program. A commercial file shredder that using DOD 5220.22-M data deletion standard to scrub your information on your hard disk.
So, hope you can use the above free file shredder program to wipe off or delete your un-use personal data or sensentive to avoid information restoration or other unwanted situation. 
