On starting up my laptop the following error occurs "Enter primary master hdd user password". On attempting to type my original windows password in 3 times it gives me the error "hdd password error code 00849". Please help.
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Re: Bypass HDD password
From what I understand, the hard drive can be set with a password so the drive can't be used in any other computer or even opened if stolen. It is different from windows or bios passwords, and no password unlocker can open it.
You need to call the manufactor of the pc, and have all the information about the computer handy so it can be proven you are the legal owner. They are the only ones that I know of that might be able to reset or disable the HD password.
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How Do I Change the Primary Master HDD User Password?
Prior to loading an operating system, your computer will first execute the BIOS program. The BIOS has an extra password feature, called the hard disk drive (HDD) user password, that can't be bypassed and provides a layer of defense to keep your data secure. To change an existing HDD user password you will have to load the BIOS menu, which is only accessible during the computer's operating system reboot procedure.
1. Close any windows that are currently open on your computer. Eject any discs inserted into the optical drive and disconnect any peripheral USB devices.
2. Open the "Start" menu and select "Shut Down." Turn on your computer once the operating system finishes shutting down.
3. Press the key your computer uses to load the BIOS menu. For example, with Dell computers tap "F2" when the "Press F2 for Setup" option appears. Press the "Access IBM" key on IBM laptops or "F10" on HP desktops.
4. Navigate to the BIOS tab that contains the HDD password option, which will usually be the "Security" tab. Some computer manufactures instead include the password option in the "Advanced" tab.
5. Scroll down to the option labeled either "User Password" or "BIOS lock" and hit "Enter." Type the current master HDD user password when the prompt appears and press "Enter."
6. Input a new HDD user password and hit "Enter" again. Navigate to the BIOS tab labeled "Exit" or something similar.
7. Move over to the "Save and Exit" entry and press "Enter." Select "Yes" and tap "Enter."
This is from a factory repair and maintenance manual for Acer Aspire Laptops. It may work for you.
Forgotten Hard Disk Password
When the user keys in the wrong password three times, an error message appears. The user must now reset
1. Make a note of the error code that is displayed with the error message.
2. Run unlock6.exe from the DOS prompt in the following format:
unlock6 XXXXX 00
(XXXXX = HDD password error code, 00 = CRC base - default is 00)
3. Select Upper case ACSII Code from the screen that appears. The HDD master password is displayed.
Make a note of this password.
4. Reset your system. When the Enter Primary Master HDD User Password prompt appears, enter the
password you made a note of in step 3.
Resetting a BIOS Password
The user can reset a BIOS password using the clnpwd.exe utiility.
1. Copy clnpwd.exe to a DOS boot up disk (or flash drive).
2. Boot your system in DOS mode.
3. Execute clnpwd.exe from the boot up disk (or flash drive).
4. Press 1 or 2 to reset the required password as shown on screen.
5. A confirmation message appears when the process is successful.