I always use a bios password. Can you access your bios (also called CMOS) I am sure there is a bios reset (usually a jumper you install over two metal prongs on the motherboard) or other method to reset your bios to factory.
SOURCE: removal of bios level password
Some laptops are passworded default at'oooo' or 'ooooo'. The bios re-set is the 'JBAT1' terminal, from jumpers 1-2 to 2-3 for a few seconds and then back to 1-2 again, but where the terminal is exactly on your motherboard i do not know. You may also try removing the bios didc shaped battery for 15 minutes or so, then replacing.
SOURCE: Toshiba Tecra M4 Bios Password Reset
there are two way
open take cmos you will see one littile batry in you laptop when you open take that battery out for mint then put back in
secound way is
jummer setting
SOURCE: my toshiba a205 s5804 is asking me a bios password
remove ac supply and battery from the laptop.. and press power button for atleast 30 sec.. it reset the CMOS memory.. this is what toshiba technical support person told me to do when i called to them way back..
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