You might need to restore the default BIOS setting to solve certain problems. There 
are several ways to reset BIOS:
  Go to BIOS and press  to load optimized defaults.
  Short the Clear CMOS jumper on the motherboard.
Be sure the computer is off before clearing CMOS data. Please refer to the Clear 
CMOS jumper section for resetting BIOS. 
Before updating:
Please download the latest BIOS file that matches your motherboard model from MSI 
website. And then save the BIOS file into the USB flash drive.
Updating BIOS:
 Insert the USB flash drive that contains the update file into the USB port.
 Please refer the following methods to enter flash mode.
  Reboot and press  key during POST and click on  to reboot the 
system.
  Reboot and press  key during POST to enter BIOS. Click the  
button and click on  to reboot the system.
 Select a BIOS file to perform the BIOS update process.
 When prompted click on  to start recovering BIOS.
 After the flashing process is 100% completed, the system will reboot 
automatically.