Hi. I own a Western Digital 400GB My Passport Essential Hard Drive and recently my files have just been scattered everywhere, I've got virus though and through, and so I decided that on a virus free computer (so it doesn't just get re-infected) I am going to completely erase the hard drive to a non-recoverable state. (Kind of in the same way that DBAN does to your hard drives - except I can't use DBAN because it wipes all detected drives.) Now I have three questions... 1. What is a software I can use to do the wipe? (Free preferably but I am willing to pay) 2. Will I have to use some kind of software to recreate the partitions on the drive before it will be detected, etc...(For this, I believe I can just use the WD Fat32 Formatter provided on their website, but I would like to hear your suggestions too...) 3. If I format the drive to say Fat32, will it be recognized (or even able to support files from) a computer that has a NTFS encoded hard drive...? Formatting Is NOT what I am asking about, formatting data will not securely erase it.