這個是樓主您需要的

http://www.acronis.com/homecomputin.../privacyexpert/

Acronis Privacy Expert Suite 9.0
Data destruction methods
Unlike its competitors, Acronis Privacy Expert Suite is the only product of its kind to completely wipe out all data without possibility of recovering by means of using 8 powerful data destruction methods.

National data destruction standards:

U.S.: DoD 5220.22-M (Department of Defense)
U.S.: NAVSO P-5239-26 (RLL)
U.S.: NAVSO P-5239-26 (MFM)
German: VSITR
Russian: GOST P50739-95
Two far more powerful pre-defined methods offered by top information security experts:

Peter Gutmann's algorithm
Bruce Schneier's algorithm
A simple, but a fast method of using in less important situations.

A special option to create custom algorithms and save them for future usage.

or this

http://www.killdisk.com/


什麼LOW LEVEL FORMAT (原廠軟體)
什麼重複FORMAT
什麼GHOST覆蓋過去

都是還有可能性被救回來的...