My acer laptop travelmate 2413lmi demanded for a password. i`ve not been able to pass through this stage despite all efforts.Right now the system can not boot without the password.

Hello capstone08,

Can you tell me which version of BIOS you have on your laptop, AWARD BIOS, AMI BIOS, PHOENIX BIOS, etc? If you have AWARD BIOS, here was a universal password for some versions of Award BIOS .The password is: AWARD_SW

Try THIS link, or THIS ,they may help..

If you know how to open up your laptop and reassemble it, you can try to remove the CMOS battery for about 15-20 mins to reset the password. The CMOS battery looks almost like watch battery...Once your BIOS password is removed, you will need to press the <F2> key during POST (Power On Self Test) to enter the Acer BIOS setup.

if all else fails, you may have to send it to an ACER repair depot, for which they will charge you $100.
Here is a copy of an email from Acer Support:
"Thank you for contacting Acer America. I apologize for the delay in responding to your inquiry. In order to have the BIOS or hard disk password removed (This include any biometric security), the notebook will need to come in to our repair depot for password removal. This service is not covered by warranty and unfortunately there is no other recourse to remove a BIOS or HDD password from the notebook. The flat fee for BIOS password removal is $100.00 US dollars plus tax. If it is a BIOS or HDD password and you would like us to service it for you, please contact our telephone technical support line at 1-800-816-2237. Hours of operation are 7am-9pm CST Monday-Friday and 8am-5pm CST Saturday and Sunday, excluding holidays."

Hope that helps...Should you have any further questions, please feel free to post them here.
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IrishDruid