Same problem but have got acer travelmate 4150

DID YOU TRY ENTER IN THE BIOS? FROM THERE YOU CAN DO A PASSWORD RESET.

Download a copy of Hiren's Boot CD from here and burn it on a disc: http://www.hirensbootcd.org/download/
Upon start up you will get a menu similar to this one:


Under advanced boot options boot from the one that suits your operatin system (XP or Vista or Windows 7). If it loads it means the bootmgr is corrupt, you can try to repair it with the Windows installation disc, instead of Install choose Repair.

Now, regarding the BIOS password, you will have to select Dos Boot CD and go to BIOS/CMOS menu and run Kill CMOS to wipe the BIOS completely or there are some utilities there that can reset just password. There re some other options too for reseting the password that you can read about here: http://www.fixya.com/support/r7229632-reset_or_remove_bios_password

To reset the BIOS password read the information from this link.

In case of your laptop the easiest method would be using software from Hiren's Boot CD as it's pretty hard to open it up and reach for the CMOS battery or the jumper.

Hi,

To disable the bios password on your laptop, you will need to remove the cmos battery on your laptop for some minutes and insert back, the cmos battery is located on the motherboard of your laptop, once the cmos battery is removed from the motherboard for some minutes, the bios password will be reset, and the bios password will be disable.

Take care.

most times the battery is located under the ram chips

there is also 2 pins that can be shorted together that will reset the bios password if you cannot see the battery when opening the ram door.

please rate my help++++Thanks for using FIXYA

you have to open the back cover and there you can find  a CMOS battery located on the motherboard ....try to remove  and insert it ..it will reset the BIOS password ...

This information is intended for experienced users. It is not intended for basic users, hackers, or computer thieves. Please do not try any of following procedures if you are not familiar with computer hardware. I'll not be responsible for the use or misuse of this information, including personal injury, loss of data or hardware damage. So use it at your own risk.
A. By Using the Motherboard Jumper:
In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.

B. By Using Software:

I have found that BIOS/CMOS Password Recovery Tool is the most effective.:
BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds
BIOS/CMOS Password Recovery Tool Service: http://www.biospasswordrecovery.com/

You will need the BIOS password to enter the BIOS setup.
To do a hardware reset remove the CMOS batteries for 30 minutes. 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.
After you enter BIOS, go to the Boot tab and down to "Security" and make your changes there.
If you need help with the default password, please re-post your request.
Thanks and good luck.

REMOVE AND 20 MIN AFTER REFIX CMOS BATTERY. GO TO CMOS SETUP RESET DATE AND TIME...... IF NOT CLEAR VISIT YOU NEAREST MYTECH SOLUTIONS LAPTOP SERVICE CENTRE. WWW.MYTECHMADURAI.COM

This web link will give you different options on resetting and clearing the bios password. The easest way is taking out the battery if not smoldered in for 30 min. then on post boot press f2 to get to bios.

http://www.askvg.com/how-to-reset-remove-bypass-a-bios-or-cmos-password/