Core Isolation Memory Integrity fails to enable because of incompatible driver wdcsam64_prewin8.sys

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BikramAgarwal

Lenovo Legion Y740, Intel core i7 9750H, Windows 10, v2004 (Build 9041.264)

I tried to enable the Core Isolation -> Memory Integrity feature in Windows Defender today, but it failed. It showed this under "Incompatible drivers" -

wdcsam64_prewin8.sys
Driver date: 11/29/2017
Driver version: 1.2.0.0

Published name: oem16.inf


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I do have a Western Digital EasyStore portable drive. But device manager is not showing any driver update for it. I also ran an update check via Lenovo Vantage and Windows Update. Neither showed any pending update.


I also went to the WD support website but that doesn't have any driver at all. I had a chat with WD support rep and they have no idea what this driver is.

How do I resolve this?

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