Precautions When Downgrading Windows Driver From The Version X.y.z.530 Or Higher To The Version X.y.z.470 Or Lower [Windows Only] - Hitachi GVX-CC64GxBX series User Manual

Precautions when downgrading Windows
driver from the version X.Y.Z.530 or higher
to the version X.Y.Z.470 or lower [Windows
only]
You need to convert parameters when you downgrade driver version higher than or equal to
x.y.z.530 to the driver version lower than or equal to x.y.z.470.
You also need to execute 'hfcmig.exe –old' before uninstalling new HFCTools.
Refer to the chapter 'hfcmig [Windows only]' for details.
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