Windows 10: Core Isolation/Memory Integrity Error Causes Shutdowns - How and why does it happen and how...

For some background: I'm not sure exactly how this set of errors/warnings within windows got triggered by an M2 SSD installation but my rig worked flawlessly until that exact day. Upon my first boot up, the PC shutdown within minutes and subsequently a few more times for the next hour while I just observed it's behavior. One of my storage HDD's was not being recognized so I double checked my connections, found a loose plug, went over all others and rebooted to see all was well. I created the two new partitions for the SSD drives and for the next week the PC operated perfectly. Yesterday it shut down again while my partner was just working on the web in Google drive. What I checked/tried to diagnose: I ran tests for memory/checked temps/updated GPU drivers. All clear. It's on my to do list to update my BIOS drivers but I presently don't think the issue lies there. Viewing the event viewer system log highlighted some messages:

For the shutdown itself I got two errors.

Event ID 6008 - The previous system shutdown at 11:38:24 AM on ‎8/‎25/‎2020 was unexpected. Event ID 41 - The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly. I then checked back further through the log to check for any warnings/errors showing up close to the shutdown itself and found this:

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. I also confirmed that on the day of my SSD installation, this warning occurs just before each of those several restarts. From what I've read in Windows documentation (and frankly don't understand) and on forums like Technet is that a portion of an implemented security measure concerning core/memory was enabled, while a required process was not, which I speculate gets "tripped" for some reason and the shutdown occurs.

What I'm trying to sort out is getting an ELI5 on what exactly this set of processes really means, how such an error can shut a PC down randomly and what the ramifications are of enabling this compared to disabling them altogether?

In case it's important, here's my PC Hardware:

• 
  Windows 10 (Build 2004)
  
  
• 
  Motherboard
  
  
• 
  64 GB DDR4 RAM
  
  
• 
  i7-8700k
  
  
• 
  NVIDIA GTX Duke 1070ti 8GB
  
  
• 
  256GB Crucial M4 SSD (Windows boot drive)
  
  
• 
  2 x 1TB HDDs (Forget brand)
  
  
• 
  2 x WD Black SN750 NVMe M2 SSD
  
  
• 
  750 Watt PSU (Forget Brand but it has a few years on it now)
  

submitted by /u/Bonocity
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:)

 

Cannot Turn On Core Isolation Memory Integrity in Settings

From Tutorial -> Turn On or Off Core Isolation Memory Integrity in Windows 10 Windows 10 Tutorials

Not able to perform steps in Option 1
Under "Windows Defender Security Center", "Device Security" is not an option.
Winver reports Version 1709 (OS build 16299 402)
The processor is Intel I3
Virtualization is enabled in system BIOS.


Please advise.

 

Core Isolation-Memory Integrity

Windows Security/Device Security/Core Isolation Details/Memory Integrity

Hi. I have an windows 10 Pro OEM, fully updated, but I can't turn on Memory Integrity, when I push the button, turn from black (off) to grey, and nothing happens. I tried to restart the PC, nope, you have some advice?

Tnx.

 

Core Isolation Memory Integrity in Windows 10

I'm force enable

Core Isolation Memory Integrity in Windows 10
using a registry file

when I'm reatart my pc my Windows won't boot just appear my mobo Logos

how can I disable

Core Isolation Memory Integrity in Windows 10
in this state ?

thankyou in advance