Windows 10: Experiencing random shutdowns? Can't Enable Memory Integrity? Own a Western Digital...

I've spent the better of a week and a half digging around trying to figure out why my rig suddenly started to shut off and instantly restart on me on the day of an M2 SSD installation and intermittently onward.

Reviewing my Windows Event Log highlighted one particular error:

• Log warning - The hypervisor did not enable mitigations for CVE-2018-3646 for virtual machines because HyperThreading is enabled and the hypervisor core scheduler is not enabled. To enable mitigations for CVE-2018-3646 for virtual machines, enable the core scheduler by running "bcdedit /set hypervisorschedulertype core" from an elevated command prompt and reboot.

If you refer to the log screenshots, within a few seconds of each time I experience a shutdown, this error appears. Not knowing exactly what any of the above truly means beyond "This stuff better protect mah stuff I think" I disabled memory integrity in my security settings and have been reboot free since.

That being said, it still irritated me to all hell that while I seem to have gotten around the shutdowns, I haven't found out why it's happening or what's wrong in the first place.

In my continued digging I may have found the big picture narrative. If you review this WD forum thread and this Microsoft Forum post you'll see that enabling memory integrity causes Windows some issues when the user has previously/or currently utilized a portable WD HDD.

There is a particular software driver that has not been updated by WD which when left on our system, blocks memory integrity from being enabled properly. As per the posts above it is located and named as follows:

The incompatible driver is the below Western Digital driver, which is located here: C:\Windows\System32\DriverStore\FileRepository\wdcsam.inf_amd64_7ce69fc8798d6116

If this is something you see in your system, plug in the portable HDD, and uninstall everything via device manager. I'm hopeful that after everything has been removed, enabling core isolation/memory integrity should be doable, and that the random shutdowns being reported will too, be at an end.

For anyone who reads this and starts exploring, I'd appreciate getting some details on your process to better document whether this ends up being a solution.

submitted by /u/Bonocity
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:)

 

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

Windows didn't let me delete that file, saying it is owned by system.

I finally managed to resolve the issue by following solution from
this post.

 

Western Digital NASK not on my network any more

Hi,

To better assist you, please clarify the following:

• What troubleshooting steps have you done so far?
• Have you tried using another computer to access Western Digital Nask?

 

Western Digital SSD Dashboard Install issues

Heard back from Western Digital, but there steps still failed, waiting on call back now from Level 2 support, but have a feeling isn't gonna help any. From there forum area looks like not only user having issues with the dashboard program.