Due to undesirable colour settings and fan profle behaviour in later BIOS versions, I've stayed at version 1.5.0. on my 9570.

Yesterday I noticed, after some Windows updates had been applied, that the system BIOS had jumped up to version 1.8.1

I've since reverted to 1.5.0. and paused updates.

Firmware 1.8.1 was actually pushed out through Windows Update. Is it just me who didn't know these BIOS updates were sneaking in via this method? This is a really Bad Idea.