You can remove HDD password by following these method.
1. Remove the drive from the laptop
2. Power up the laptop and go into the bios
3. If there are any other bios related passwords set, remove them.
Now, you should be able to toggle the “Use Passphrase” setting. If it
is enabled then disable it, and if it is disabled, then enable it.
5. Save changes and exit.
Power down, re-insert the drive, and go back into the bios. You should
now be able to make whatever changes you want to the HD password