clean windows 10 install admin blocked

[Phil21021975]

i have had a pavilion dv6 windows 7 laptop given to me with a faulty harddrive, after replacing drive i have tried installing windows 10 and it installs but on intallation reboot fails to load.. tried going into a dos bootup but am being blocked by an administrator password. I do not have it and am unable to seekout the previous owner to ask..i have tried removing bios battery and cutting powet to all for a reset without result...how can i get around this 

[Phil21021975]

changed the drives a few times no differance

[WAWood]

@Phil21021975 

Removing a CMOS battery in a laptop is a waste of time!

If the BIOS is password protected, without having that, you will not be able to change it or to boot.

BIOS and power-on passwords are contained in the firmware that is present inside the BIOS chips -- which are soldered to the motherboard and thus, are not replaceable. So, you can't just buy a replacement chip and swap them. Also, neither your nor HP can reset the BIOS password on the current motherboard. Thus, replacement of the motherboard is required with one that has a BIOS chip that does not have a password in the firmware. This is very expensive to do and can often cost more than simply replacing the PC

If you are not prepared to spend the money to get HP to replace the motherboard, you would have to take the PC to a local repair facility to see if they can do anything for you -- but we can not assist in that in any way.