Absolutely agree with gothic. While updating the bios is generally a straight forward process, if somthing doesn't go right it's possible to fry the mobo. It's somthing you should not do unless there is a specific reason or need.
I use the MSI live update feature. If an update is available then I make sure everything is closed & let it do its thing. So far it's been updated twice with no problems although that thought is always in the back of my mind. (power failure or freeze) It's good to know that if you format it does not affect the bios & you don't have to do it again.......until they update.