Set BIOS Password
Enabling BIOS password procedures vary from BIOS manufacture to another.
But we will try to summarize them.
First, you have to enter the BIOS configuration menu, but this will vary from vendor to another.
Whatever is your vendor you should access the BIOS using one of the following keys on the keyboard:
Delete, F1, F9, F10
After you enter BIOS configuration menu, and depend on your BIOS vendor, you should go to the following option:
Set Supervisor Password
Choose any password, then Exit & Save the configuration.