Asks for BIOS key

Are you asking for the password number itself, because only the guy that set it would know. If you are asking what it is, here: BIOS ( basic input/output system) is the basic boot program on the board that allows user interface with the chip. One can set a BIOS password to lockout a user from access. Problem is...is if you have the computer you can reset it by changing the BIOS jumper on the board. Typically a jumper will be found across pins #1 and #2 as the default position, and by shutting the computer down, unplugging the power cord and then moving the jumper so that it is across pins #2 and #3 will clear the Bios/CMOS settings.

the only way to get past the bios password is to open up the case and try to find a jumper on the main board that says bios reset, close that jumper and turn on the computer for one boot, power down and remove the jumper, after that the bios should be reset(bios passwords are usually set as a security measure that is not easy for the average user to bypass such as a windows one that can be removed by formatting the drive and reinstalling windows)

Here's how to reset password

Resetting a Toshiba BIOS Password KeyDisk will reset the BIOS password on Toshiba laptops.
Older Toshiba laptops can be convinced to boot without their power-on BIOS password by attaching a dongle to the parallel port which crosses a number of the pins. The pin out is:
Pins 1-5-10 2-11 3-17 4-12 6-16 7-13 8-14 9-15 Some Toshiba's can be convinced to bypass the startup BIOS password if you hold down the <LEFT-SHIFT> key while booting the system.

Key Disk for Toshiba laptopsSome Toshiba notebooks allow to bypass BIOS by inserting a "key-disk" in the floppy disk drive while booting. To create a Toshiba Keydisk, take a 720Kb or 1.44Mb floppy disk, format it (if it's not formatted yet), then use a hex editor such as Hex Workshop to change the first fwe bytes of the second sector (the one after the boot sector) and set them to 4B 45 59 00 00 (note that the first three bytes are the ASCII for "KEY" :) followed by two zeroes). Once you have created the key disk put it into the notebook's drive and turn it on, then push the reset button and when asked for password, press Enter. You will be asked to Set Password again. Press Y and Enter. You'll enter the BIOS configuration where you can set a new password..

there should be a "jumper" near the cmos battery on the motherboard. it'll say something like cmos resest. move the jumper power on the computer. Power it back off and move the jumper back. It should reset your bios password.

Wrong stick.

This should be pretty easy to do.
1. Reboot your laptop and select F2 to go into the BIOS settings. You'll need to be quick or it will boot to Windows.
2. Use the --> arrow key to move to the Security page.
3. Arrow down to the Set HDD password and press Enter
4. Enter your current password
5. Select the Enter key twice to enter no password
6. Select the F10 key to save and exit.

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/

I assume this is a BIOS password, and not some third-party application, such as Acronis Disk Director or some such...if this is the case, you will need to reset the BIOS password by disassembling the laptop and either flipping a switch that returns to its' original position on its' own, or by removing and replacing a jumper on the motherboard.
I cannot tell you anything specific about this procedure without knowing the make and model number of the laptop. Removing the BIOS battery, unless the laptop is very old (we're talking 80286-386 here) will not work.

BIOS Passwords Basic settings on your computer such as how many and what kinds of disk drives you have which one are enabled and which are disabled and which ones are used for booting are held in a CMOS chip on the mother board. A tiny battery keeps this chip always running so that whenever you turn your computer off, it still remembers its instructions. A common method of entering the BIOS is pressing the Del key at Bootup other common methods are Ctrl +Alt +Esc and Ctrl + Esc. Most computers have a BIOS which can be configured to ask for a password as soon as the computer is switched on. If the Ask Password option is enabled then as soon as the PC is switched on a Dialog box welcomes you and asks you for the password. You cannot override this and there is no way of disabling this because to enter the BIOS you need to know the BIOS password. So what do you do? Disable it. Now to Disable the BIOS password you need to enter the BIOS. But as soon as you enter the BIOS the BIOS asks for a password. Now the most common method of overriding this password prompt is by trying out the default BIOS passwords. Some common passwords are: Lkwpeter j262 AWARD_SW AWARD_PW Biostar Many BIOS also have their default password that can be tried. "j262" opens most versions of Award BIOS it works about 80% of the time. "AWARD_SW" and "AWARD_PW" work on some computers as well, but much less often. In some BIOS shift+s y x z also works. The best way to find out the default passwords of various BIOS is to search at http://astalavista.box.sk which is the best search engine for security related matter Well if the default passwords did not work them get ready for some serious Hacking stuff. Now as the default BIOS password did not work we will try to reset the BIOS to its default settings so that it asks for no password at all. So to do following: First you have to open the computer and then look for a round lithium battery, it probably looks like a silver coin. So remove the battery and after 30 seconds or so put it back. Some computers may also require you to reset the jumper, so look for a 3-pin jumper and reset it. For example, on most machines you will find a three-pin device with pins one and two jumpered. If you move the jumper to pins two and three and leave it there for over five seconds, it will reset the CMOS. When you boot the machine some BIOS may give an error saying that the BIOS was reset or tampered with, but that is not such a big problem