How to unlock acer aspire 5570 primary master HDD user password? when i just turn on the laptop ,then it just came out " Enter Primari Master HDD User Password" and i dunno what is the password! after i simply put the password, i comes out the word ''Hdd password error code [10546].................. after i push enter button cant be operated also......... the last sentence i found is ''operating system no found''............

Acer Master Password Password to unlock System Disabled Yahoo Answers

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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.

Instructions

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."

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try reseting it through your bios, if your lucky there will be a way, if not, get a new harddrive

send me ur email and I'll give you link for software to remove all passwords in bios or windows

call the acer tech support or go on line a to www.acer.com and they should be able to get you need best regards mike

the only solution is for you to call the acer tech support and they can generate a password for you to gain access to your hard drive and bios.
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Try admin/admin or administrator/admin or just admin/*blank*

If your friend did not set the password it may have been set by a virus.

my laptop is asking for a primary master harddisk password what do i do if i dont know the password?