|The above is for Windows password. To remove BIOS-based power-on password, follow the steps below|
1. Restarting the computer, and then pressing f10 while the
“F10 = ROM Based Setup” message is displayed in the lower-left corner of the screen.
2. Use the arrow keys to select Security > Power-On password, and then press enter.
3. To delete a power-on password, type the current password in the Old password field, and then press F10.
4. To save your preferences, use the arrow keys to select File > Save changes and exit. Then follow the instructions on the screen.
Your preferences go into effect when the computer restarts.