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Re: removing power on password
When you restart your PC, before it boots to windows on the HP logo , tap the F10 key to enter set up, Go to security option and disable to power on option. next time when u restart it would not ask you for a power on password.
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Usually "flashing" the bios will help. If you can go to HP's website and search for your particular computer's drivers, there should be one for your bios chip. Run that, and it should remove the password. It will reset it back to the factory default settings.
Another way to remove the password from the bios is taking apart the computer (may void warranty, just so you know) and removing the button sized battery from the main motherboard.
Using a screwdriver, You'll be able to open a cover on the bottom of the laptop and disconnect the CMOS battery which will clear the power on password. Try to find the laptops Maintenance and Service guide online if you're unsure of how to do this. Google should find it for you.
A GOOGLE-search gives "Results 1 - 10 of about 127 for 2Q2WM-VCB98-8C6BG-C9BT2-3XDRY".
If you have a BIOS-password that you have forgotten, find your original sales-receipt for the computer, and then call the manufacturer. With the receipt as "proof" that you are the owner of the computer, rather than just being the person currently in possession of the computer, the manufacturer will be able to help you remove the BIOS-password.
You need to reset the BIOS, which is sorta like a manager for the computer. Some pretty basic settings may get trashed -- like whether it automatically comes back on after a power failure, hard-coded power management things, that sort of stuff -- but it should be fine.
Directions are available on Page 30 of this document: http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01039180/c01039180.pdf?jumpid=reg_R1002_USEN
See that part where it tells you to look on Page 54 for removing a Real Time Clock battery? There is a -lot- of disassembly involved in this. Read through all the relevant instructions. You'll probably want to print pages 30 to 55 of the PDF for everything you need to take apart ... which is just about everything between pages 30 and 55. If you're not comfortable doing that, you may wish to hire someone -- it may be cheaper to find a local guy than a mail order company, which seem to prey on panicky business people and charge exorbitant rates. Shop around and get quotes.