


Switch to "Advanced Mode" if the BIOS is in "Easy Mode".

Reboot system and press Del repeatedly at system start.See "Checking MBR or GPT partition style" of this guide. Precautionary notice: If you haven't had this enabled before, your OS will not boot if your boot disk partition style is not GPT. Look for "Secure Boot" option under under Boot, Security or Authentication menu categories.Go to Troubleshoot > Advanced options > UEFI Firmware Settings and press Restart. After restart, the Advanced Startup menu options will appear. If that does not work, go in Windows, hold the "Shift" key and select Restart from the Start Menu.Some OEM PC(HP, Dell, Acer, Lenovo, Toshiba etc.) and notebooks use keys like F1, F2, F8, F10 or F12 for entering BIOS.
