Windows 10: Blue Screen after trying to turn on Memory Integrity

I just updated to Windows 11 and when I try to turn on the "Memory Integrity" under Core Isolation in the security settings I get a blue screen after my computer restarts with an error that says "What Failed: ACPI.sys". The computer restarts after that and the Memory Integrity option is still off. According to windows turning this on will make me less vulnerable which is good! Any help on this is appreciated! Here is my system information :OS Name Microsoft Windows 11 Pro Version 10.0.22621 Build 22621 Other OS Description Not Available OS Manufacturer Microsoft Corporation System Type x64-ba

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Memory Integrity Won't Turn On

Thanks for your reply.

I've joined the Windows Insider Programme and updated my laptop to 22H2 as this appeared to be the only thing listed that I didn't currently have. It's installed, but when I tried to switch on Memory Integrity from the settings it still scans for incompatible drivers, doesn't seem to find any and then says it needs to restart. And again once I press restart it gets to the Medion logo (just before the windows screen appears) but just hangs there.

On the suggestion you've linked above, Option 2 is "Refresh or Reinstall Windows Defender". Now if I follow this step and delete the Windows Defender folder in the registry as suggested, do I need to reinstall or will Windows do this automatically when I restart? I don't want to go deleting the folder and then finding that I've shot myself in the foot so to speak.

**Update**

I tried Option 2 and unfortunately this hasn't worked either, my laptop still hangs on the Medion logo without loading Windows after reset. I have to hold the power button to turn off and restart, then it loads Windows succesfully but still with Memory Integrity off.

Option 3 doesn't seem to be the problem as it's not detecting any incompatible drivers.

 

Memory Integrity option cannot be turned off

I am unable to turn off the Memory Integrity option for some reason.
I even followed the steps below and rebooted, still keeps on enabling itself.
Turn On or Off Core Isolation Memory Integrity in Windows 10

Even try these settings to disable Credential Guard here.
https://docs.microsoft.com/en-us/win...l-guard-manage

Even reinstalled Windows 10 by wiping out all the partitions starting from scratch. Still no luck.
Think this is a bug in v1809.

Before the complete reinstallation, I did enable the VBS settings with UEFI Lock features under the Group Policy.
But I am stumped as to why even after a reinstall I cannot disable the Memory Integrity option.

Any help would be greatly appreciated.

Thanks

 

Can't turn on "Core isolation" / "Memory integrity"

Windows 10 21H1 19043.1586. When I try turning on "Memory integrity", I get the familiar error "Memory integrity can't be turned on ... Try resolving any incompatibilities with your drivers".

But when I click "Review incompatible drivers", nothing is listed.

Clicking "Scan again" repeats the process.

Is there a way to resolve this?