1. Reset your UEFI to Optimized Defaults, reboot, enter UEFI and then flash to the new UEFI build.
2. After flash and restart, enter Windows/Linux, then exit and shutdown.
3. Remover the power cord from the power supply, wait thirty seconds, press Power On button to clear any remaining charge, clear CMOS for five seconds, reattach the power cord, power on the system, enter UEFI, set to Optimized Defaults, save and exit.
4. Enter UEFI, set your system to customized settings based on your system configuration (RAID, OC, etc), save and exit.