Yoga 2 Pro : BIOS Update on a clean Windows 8.1 Pro install

Hi,
I recently bought the Yoga 2 Pro. Like everybody I have the yellow problem.
After buying it, I reinstalled my computer with a fresh Windows 8.1 pro install.
I was wondering if anybody has already tried updating the BIOS on a clean Windows 8.1 install ?
And also if there is any reported bug with the BIOS update.
I already crashed a while back one of my previous computer and I would prefer if this don't append again
Thanks,
Best,

Not, i'm speaking about the BIOS update. The windows 8.1 pro installation was fine.

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