How to toshiba 445cdt bios setup

Usually Delete (Del) key or F2 -- should be in the manual ?

One way if you don't know is just to press lots of keys which is usually detected as a keyboard error, then offers you the option to access the BIOS.

Hold down the "ESC" key while you power up. A message will soon display requesting you to press "F1" to enter BIOS. This works on the 445CDT I'm currently working on.