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The H175 and HM175 chipset consists of a single component, namely the PCH (Platform Controller Hub). They are essentially the same, so I wouldn't worry about differentiation.
The Intel Chipset Device Software package often confuses people. The package actually installs no device drivers; it simply installs a set of INF files that optimally configure Microsoft's standard drivers for the Intel platform components present. Microsoft automatically provides any necessary updates to these drivers via Windows Update. It is rare for this package to require updating (other than when new PCH generations are released). The version number for this package is completely separate from the version numbers for the various drivers that are configured by it.
The Meltdown and SpecterA vulnerabilities are addressed by workarounds in the O/S. Only the SpectreB vulnerability was addressed by a microcode update. Intel released these microcode updates some time ago (see schedule here: Latest Microcode Revision Guidance (April 2, 2018)). Your board/system vendor should have already released an updated BIOS package that included the pertinent microcode updates. You simply need to download and install this latest BIOS release (if it hasn't happened automatically via Windows Update).
Hope this covers it,
Hi, i found out, that the old driver-date in the driver will be shown, because it is the day, Intel was founded. I found this information in one of the release-informations....i think okay, well, it´s a litle bit crazy, but important is, that i got all the updates my system needs.
Yesterday, after installing the newest bios- and firmware-updates from may/april´18, the vulnerability-tool SA 00086 confirms, that all vulnerabilities are closed...thats perfect. I forgot to verify with Spectre- and SpeculationControll PowerShell-Module, okay, but i will check this later this day...
Yeah, thanks for your support here! Cheers, AJ @Scott Pearson