Download both the BIOS and the drivers from the ASROCK site. Be sure to get the right ones, and carefully follow the instructions for the BIOS-update.
I have been unable to update Windows 10 pro 64 from 1709 to 1803 and after 3 days and 6 sessions with the support team taking over control the final operator told me that the bios on my ASROCK 900x Extreme9 was out of date the version I have is 1.70 dated sometime in 2014 how easy is it to update this safely and most likely the drivers I am a bit nervous about messing things up

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