Reset password on BIOS Aspire one D270 - Acer Aspire One D270-1824 Aod270-26dkk

SOURCE: how to reset password

To set the bio password, follow the following:

As soon as your laptop powers up, hold F2 until the ACER logo appears. Now press the right arrow on your keyboard twice to go to the: "MAIN" tab. Now press enter. You will be asked to enter the new password twice along with the original one. (if you previously had a password.). Now scroll down to where it says either: "Enabled" or "Disabled". If it is: "Disabled", press enter and select "Enabled". Exit the BIOS saving changes.

Done.

SOURCE: My Bios password has got reset

Hi Psyadav,
Try this link http://www.tech-faq.com/reset-bios-password.shtml , there are information on how to reset, with different way, a bios password.
Let me know if this article helps you.

SOURCE: Bios Password Reset

The only idea I have is to find and disconnect the CMOS back-up battery after removing main battery and unplugging the AC adapter. That SHOULD clear the bios completely, wiping out the password, the date, and everything else.
I know this works on desktops, and most laptops, but no promises, and the cmos battery may not be easy to access.
You should probably leave the battery unhooked for at least 1-2 minutes to be sure it clears.

Hope this is some assistance!

SOURCE: reset bios password or remove

The laptop password cannot be reset by removing the battery and there is no jumper for the CMOS or bios reset. You must go to Acer to obtain the master password as laptop computers have NVRAM (non-volatile RAM) that retains the password forever as an anti-theft protection. Steve Medley

SOURCE: Reset Bios Password for Acer Aspire 7720Z Notebook - Ron M.

Here is the link to your service manual, when you click on it and bring it up...it is a pdf file so you'll need adobe or another pdf reader, go to page 40, that is the directions for resetting and removing the BIOS/hard drive password. Good luck

http://tim.id.au/laptops/acer/aspire%207730%207730g.pdf