How do I enable 64-bit BIOS?

1. Step 1: Press power button to boot, then press F2 key enter BIOS setup.
2. Step 2: Select sub menu to Configuration.
3. Step 3: Select to Hotkey Mode item and then press enter.
4. Step 4: Select Enabled then press enter.
5. Step 5: Press F10 save and exit, then select Yes then press enter.