Advanced File Shredder securely erases files or folders on your PC using seven pass US Government standard wiping and cryptographically strong random number key. Shredded files cannot be restored by any data recovery software. Protect yourself: Windows physically does not remove files from your hard disk and sensitive data like Affaires or financial information can be easily recovered. Note: when you normally delete files using Windows Explorer and even emptying the Recycle Bin it is still possible to recover data or some of its contents.