Cannot enable Core Isolation in Windows 11 due to incompatible drivers

Anonymous

Core isolation on Windows 11 not possible, in my case, because of these drivers

I tried to find them in Windows/Sys32/drivers (as suggested in other forums) and deleting them but with no success so how can I solve the problem allowing the activation of core isolation?

Original title:

Core isolation not allowed for driver incompatibility

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Answer accepted by question author

Sumit 44,316 Volunteer Moderator

Hi,

Here is what typically works for most of the users who know the driver name as it is mentioned in Windows Security. Apparently, Microsoft changed/updated the incompatible driver list recently, which has ended up this issue for most of the users.

Method 1:

You can get the list of drivers by running this command in the elevated command prompt:

dism /online /get-drivers /format:table

After that, Make note of the Published Name (ex: "oem13.inf") of the driver that is shown as problematic.

Then use the pnputil command to delete the driver from the device:

pnputil /delete-driver <Published Name> /uninstall /force

Please note that running this command would remove the device driver and the next time you use the device, it would not work. Reinstalling the driver might help.

Method 2:

Another alternative is using Autoruns to delete the driver. Download it from here:

https://live.sysinternals.com/autoruns.exe

Run it as administrator.

Go to the Driver tab, locate the driver and delete the same.

[FIX] Memory integrity due to Incompatible drivers cannot be enabled - Your Windows Guide

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116 additional answers

Ramesh 181.2K Reputation points Volunteer Moderator

2023-05-14T21:18:06+00:00

Please try Option 6 or Option 7 in this article to remove the offending driver.
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Anonymous

2023-05-14T21:05:35+00:00

This did not work for me.

Still have vacnatkd.sys as invalid, but I can't locate the drive to remove

<Removed the MSA ID in Screenshot #1 to protect the user's privacy ~Moderator>
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Anonymous

2023-05-14T05:11:51+00:00

How to fix Local Security Authority protection is off error

To fix “Local Security authority protection is off. Your device may be vulnerable”, follow these steps:

Open Windows Registry Editor.

Navigate to the following location: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa

Make sure you have RunAsPPL and RunAsPPLBoot. If you don’t have RunAsPPLBoot listed, create DWORD entries for RunAsPPL and RunAsPPLBoot.

Value for both entries should be 2.

Reboot and warnings should stop.

reg add HKLM\SYSTEM\CurrentControlSet\Control\Lsa /v RunAsPPL /t REG_DWORD /d 2 /f;reg add HKLM\SYSTEM\CurrentControlSet\Control\Lsa /v RunAsPPLBoot /t REG_DWORD /d 2 /f;
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Anonymous

2023-05-14T04:44:17+00:00

I had an issue with Ftdibus.sys not letting me turn on Memory integrity so I followed the instructions that were given here and downloaded CDMuninstaller.exe from the FTDI website. Ran it, uninstalled it. was able to turn memory integrity on. but then this happened....

Every time I restart, it still says the same. Turned off and on again. Restarted. Turned off LSA protection and turned it back on. Restarted. Turned off and on again. No change, still says its off and requires a restart. Reinstalled Ftdibus.sys from the website. No change, checked windows update. No updates. What could be the cause of this?
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