Software to make data irretrivable from hdd

[magnet]

I want a software name which deleted data frmhdd such that no technique can make it retrievable...... want to giv my hdd for replacement and it contain lot of private datas which i have deleted from hdd and defragmented the drive but still i have doubt

 

[saurabh.sauron]

There are many shredding softwares such as Eraser, Shredder which u can use. but be careful, shredding takes time and cpu resources. if u want to burn off those gigs, then I recommend you back up all that data and go for a full format.

 

[hemant_mathur]

Data can be recovered even after a full format. Try shredding sw instead.

 

[wizrulz]

Format the HDD....repartition...fill junk data...format .....repartition..