Recently introduced rigorous data protection laws in the EU, emerging presence of the NSA, and massive security hacks and breaches. Files formally deleted by Windows are recoverable on your hard drive, but the operating system just changes a few bits in the header file to notify the system that the data isn’t required any longer.
Hackers can use digital forensic tools that can be downloaded for free and recover your file within seconds. A tool called eraser helps restore the balance. This free program repeatedly over writes every bit of data present in folders and files that you choose to delete securely. Eraser is very customizable wherein you could choose your own erasure method, such as seven passes of pseudo-random data. Task automation can also be done by over writing free space on your hard drive.
You could set up eraser and erase data. Configuration of the eraser settings should be done. Eraser makes it very difficult to recover files once you delete them. It also incorporates a useful feature for moving folders and files safely.