How to Fix Core Isolation Turned Off Issue?

By Dominic Chooper on December 06, 2023

Discover the solutions to the core isolation issue on your Windows system by going through this simple guide.

Whether you are familiar with PowerShell, navigating Autoruns, or exploring Group Policy, these step-by-step directions offer a straightforward process to restore security and stability, ensuring your PC performs at its best.


Why is Core Isolation Turned Off?

An incompatible driver in a system is the most common cause for the core isolation to be turned off. It is mainly the effect of the conflicts caused.

However, there are also other significant reasons, such as:

System Updates: Windows updates or changes made to the system configurations can often impact core isolation settings and cause this issue.

Driver Signature Issues: Drivers without proper signatures may also cause this issue.

Security Software Interference: There may be a few third-party security software or antivirus programs that may inhibit core isolation, instigating its deactivation.

Hardware Limitations: If your computer system has older hardware or components, it may lack the required virtualization support. This may affect the functioning of core isolation.

However, the good news is that this issue can be resolved easily by careful troubleshooting.

Ways to Fix Core Isolation Turned Off Issue

Updating the drivers is one common and most effective way to resolve the issue of the core isolation being turned off in a computer system. This will not only modify the security settings but will also ensure system compatibility.

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A few other ways to resolve this issue are:

Here are the specific steps for each that you should follow.

Method 1: Using Specific Commands in Windows PowerShell

You can fix the issue of core isolation turned off in your computer by running a few specific pnputil commands in Windows PowerShell as the administrator to delete the drivers causing the issue, if you know that in the first place.


Windows PowerShell

pnputil /enum-drivers

pnputil /delete-driver oem<XX>.inf

You do not have to reboot your system. Therefore, you can immediately retry to enable core isolation of your computer. It is now when you will see a prompt to reboot once core isolation or memory integrity is turned ON.

Expert tip: It is good to reboot your system for a clean state. Also, consider creating a system restore point or backup before proceeding.

Method 2: Update the Driver

If you are not sure about the driver causing the core isolation issue, you can try updating the driver using Autoruns and enabling core isolation through Windows Security.


autoruns for windows

Opening Autoruns for Windows – Sysinternals

Download Autoruns and Autorunsc

Download File Info window

![Clicking on the Extract to Autoruns](/imgs/article/fix-core-isolation-turned-off/7.webp)

Clicking on Run as administrator

Going to the Drivers tab

Wait till the page completes listing all available drivers. The ones marked in yellow or red color are the ones that are causing the issue with core isolation. You can uncheck them simply from here.

The ones marked in yellow or red color are the ones that are causing the issue with core isolation


Selecting Delete from the drop-down options

Clicking on the OK button

Close the window when you are done deleting all of the problematic drivers.

View security dashboard

Selecting Device security

Clicking on Core isolation details

Memory integrity

Clicking on the Restart button

Expert tip: Exercise caution while using Autoruns to disable drivers. Also, make sure that you have identified the correct drivers causing the core isolation issue before you make any changes. Creating a backup or restore point is recommended.

Method 3: Using Group Policy Editor

Making changes in the Group Policy Editor can potentially help address issues related to core isolation being turned off.


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Clicking on the Edit Group Policy option

Alternatively, you can press the Windows and R keys together to open the Run dialog box > Type gpedit.msc > press Enter.

Typing gpedit.msc

Double-clicking on the Windows Settings folder

When you are done, go to the Start Menu again and type cmd.exe in it to open the Command Prompt. Click on the Yes button in the following prompt to get administrative privilege.

Running the command gpupdate /force

This will update the Group Policy. Now, once the process is complete, restart your computer system to apply the Group Policy modifications.


In conclusion, the solutions to core isolation being turned off are pretty simple.

All you have to do is target the root causes.

Follow this guide not to troubleshoot and enhance the security and performance of your PC easily and efficiently.