A friend? of mine locked the Hard Drive in my Laptop (it was his way of "sticking it to me", and so far it's worked very well). As the boot process begins it stops, and asks for the password. The boot sequence is set for floppy first, but even trying to boot with a floppy wont allow progress past the password prompt.
So far I've tried to boot to a floppy - no success - with the thought of a Low Level Format. I've placed the drive, with an adapter, into a desktop, and I discovered that BIOSs without a password scheme like a Laptop, reports the drive as a "failed disk". If I place it into another Laptop it asks for the password. I locked a different drive, placed it into the desktop, and it reported as a "failed disk". I put it back into the Laptop, unlocked it, and back into the desktop where it worked normally.
Further research led me to the Hard Disk ATA Standard, which allows for a Hard Drive to be locked, and unlocked. It appears that the passwords (user, and master) are not on the platter, but stored in a register on the controller board. The logic sequence on boot up is to check if the drive is locked, and if it is it wont unlock the drive until the proper command, then the password is sent to the drive.
The ATA Standard also indicates that if you know the Master Password, it will unlock the drive, and reset the user password to null.
I understand the need for security, but I can't help but suspect that some clever chap has discovered a workaround short of sending the drive to a data recovery facility, and spending thousands of $$$.
There has to be a way of probing the register in question, and reading the data necessary to unlock the drive.
I can buy a new drive for my Laptop, but I guess the challenge of overcomingmthe situation is too much to pass up.
Any suggestions, Web Sites, other news groups, or assistance would be appreciated!!
Thank you.
Louis--
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