Despite the latest BIOS installed (release notes state that it adds Windows 7 support), I find every time when Windows 8.1 finds new updates, certain hardware components are disabled (e.g. devices in PCIe x1 slots and onboard 1394, but did not affect the keyboard, video and mouse) but are re-enabled every time when the latest Windows 8.1 updates have been applied.
Has anyone else experienced something like that?
Has anyone else experienced something like that?

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