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Laptop Hard Drive ATA Password Utility

I am looking for a straightforward utility that I can use to manage passwords on password-protected hard drives.  Note that I am not looking to circumvent the password, just manage it, ie unlock the drive and set a new password, etc.  I have eSATA and USB ports on my laptop, and when a password-protected drive is connected via the eSATA port I can unlock it with Intel Matrix Storage Console, but I want to be able to unlock password-protected drives when I connect via USB since I may want to access the data from other systems without eSATA ports.  For this reason it will also be important that I be able to download the utility from any computer and use it immediately without having to pay for it again, etc.

Please refer to this post for more background info:  http://www.experts-exchange.com/Security/Encryption/Q_24394451.html.  
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Kurvenal
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Kurvenal
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JohnBusiness Consultant (Owner)Commented:
In my experience (IBM Thinkpads) if a hard drive was locked in a given computer, the drive has to go back to that computer to have the password changed. I tried moving a drive to a different computer of the same type and model number but could not change the HD drive password. I think what you want defeats the purpose of the lock. ... Thinkpads_User
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KurvenalAuthor Commented:
I am wondering if you might have used the built-in Trusted Platform Module (TPM) of your ThinkPad to set the HDD password, in which case I believe you are right it would be locked to the specific laptop.  But I temporarily have two identical Dell laptops right now and was able to lock a hard drive on one and access it on the other using eSATA and Intel Matrix Storage Console to unlock it.
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JohnBusiness Consultant (Owner)Commented:
Thank you for that information. I need to ensure that no one but me can unlock my hard drive especially with commonly available tools. I realize you have the password here, but the Dell approach concerns me for my own use. .... Thinkpads_User
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JohnBusiness Consultant (Owner)Commented:
Hello Kurvenal - I think you have gotten the answer to your question and should consider closing it.  ... Thinkpads_User
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KurvenalAuthor Commented:
I contacted the developer of Hard Disk Sentinel (http://www.hdsentinel.com/),
and he was able to write an app for me that unlocks password-
protected USB drives.
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