Turn On or Off Core Isolation Memory Integrity in Windows 10  

Page 1 of 16 12311 ... LastLast
    Turn On or Off Core Isolation Memory Integrity in Windows 10

    Turn On or Off Core Isolation Memory Integrity in Windows 10

    How to Turn On or Off Core Isolation Memory Integrity in Windows 10
    Published by Category: Security System
    03 Jan 2020
    Designer Media Ltd


    How to Turn On or Off Core Isolation Memory Integrity in Windows 10


    The Windows 10 Creators Update introduced a new experience called Windows Security to make it is easier for you to view and control the security protections you choose and better understand the security features already protecting you on your Windows 10 device.

    Starting with Windows 10 build 17093, the Device security page was added to Windows Security that provides you with status reporting and management of security features built into your devices including toggling features on to provide enhanced protections.

    One Device security is Core isolation that provides virtualization-based security features to protect core parts of your device.

    Memory integrity is a security feature of Core isolation that prevents attacks from inserting malicious code into high-security processes.

    See also:

    It is required to have Virtualization enabled for your CPU in your UEFI firmware settings to have Core isolation Memory integrity available.
    Turn On or Off Core Isolation Memory Integrity in Windows 10-virtualization.jpg



    This tutorial will show you how to turn on or off the Core isolation Memory integrity Device security feature of Windows Security in Windows 10.

    You must be signed in as an administrator to turn on or off Memory integrity.



    Contents

    • Option One: Turn On or Off Core Isolation Memory Integrity in Windows Security
    • Option Two: Turn On or Off Core Isolation Memory Integrity using a REG file



    EXAMPLE: Core Isolation (Hypervisor enforced code integrity) shown as enabled in msinfo32
    Turn On or Off Core Isolation Memory Integrity in Windows 10-hypervisor_enforced_code_integrity.png






    OPTION ONE

    Turn On or Off Tabs in apps (Sets) in Windows Security


    1 Open Windows Security, and click/tap on the Device security icon. (see screenshot below)

    Turn On or Off Core Isolation Memory Integrity in Windows 10-windows_defender_memory_integrity-1.jpg

    2 Click/tap on the Core isolation details link. (see screenshot below)

    Turn On or Off Core Isolation Memory Integrity in Windows 10-windows_defender_memory_integrity-2.png

    3 Turn On or Off (default) Memory integrity for what you want. (see screenshots below)

    Turn On or Off Core Isolation Memory Integrity in Windows 10-windows_defender_memory_integrity-4.png Turn On or Off Core Isolation Memory Integrity in Windows 10-windows_defender_memory_integrity-3.png

    4 Click/tap on Yes when prompted by UAC.

    5 Restart the computer to apply. (see screenshots below)

    Turn On or Off Core Isolation Memory Integrity in Windows 10-core_isolation_restart.png
    Turn On or Off Core Isolation Memory Integrity in Windows 10-windows_defender_memory_integrity-6.png Turn On or Off Core Isolation Memory Integrity in Windows 10-windows_defender_memory_integrity-5.png






    OPTION TWO

    Turn On or Off Core Isolation Memory Integrity using a REG file


    The downloadable .reg files below will modify the DWORD value in the registry key below.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity

    Enabled DWORD

    0 = Off
    1 = On


    1 Do step 2 (on) or step 3 (off) below for what you would like to do.


    2 To Turn On Core Isolation Memory Integrity

    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Turn_ON_Core_isolation_Memory_integrity.reg

    Download


    3 To Turn Off Core Isolation Memory Integrity

    This is the default setting.


    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Turn_OFF_Core_isolation_Memory_integrity.reg

    Download

    4 Save the .reg file to your desktop.

    5 Double click/tap on the downloaded .reg file to merge it.

    6 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

    7 Restart the computer to apply.

    8 If you like, you can now delete the downloaded .reg file.


    That's it,
    Shawn




  1. Posts : 100
    10Pro x64 [1909]
       #1

    first of all excuse me for my english but i have some questions.
    So, if i don't misunderstand the MS article, device that meet the minimum requirements have (part of) VBS enabled by default regardless of the type of installation (clean or upgrade) while HVCI depends on the type of installation performed?

    Example (assuming that the device meets the minimum requirements):
    clean install→VBS, HVCI on
    upgrade→
    VBS on, HVCI off (even if it can be turned on post upgrade via memory integrity switch)
    Last edited by Ita1; 25 Mar 2018 at 11:33.
      My Computer

  2. Brink's Avatar
    Posts : 48,835
    64-bit Windows 10 Pro for Workstations build 19635
    Thread Starter
       #2

    Hello Ita1, :)

    I'm not sure either, but this setting has always been turned off by default for me so far.
      My Computers


  3. Posts : 100
    10Pro x64 [1909]
       #3

    this setting = VBS, right?

    What's the meaning
    than of "for older systems, customers will have the ability to opt in post upgrade using [...]"?

    Older system=upgrade?
      My Computer

  4. Brink's Avatar
    Posts : 48,835
    64-bit Windows 10 Pro for Workstations build 19635
    Thread Starter
       #4

    Yes, core isolation is VBS.

    The line below means that they will be able to set it like in the tutorial.

    ...for older systems, customers will have the ability to opt in post upgrade using the UI in Windows Defender Security Center (WDSC).
      My Computers


  5. Posts : 100
    10Pro x64 [1909]
       #5

    txs for your kind reply Brink!
    Brink said:
    Yes, core isolation is VBS.
    right
    The line below means that they will be able to set it like in the tutorial.
    yes but for devices that meet the minimum requirements otherwise the reliance on hardware would be useless.
    So, i think that older system should be explained as "system that come from an older branch" (eg 10 FCU) otherwise it doesn't make sense...
      My Computer

  6. Cliff S's Avatar
    Posts : 24,314
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       #6

    From the article you linked Shawn:
    While hypervisor-protected code integrity compliance has been a requirement for all drivers since Windows 10 Anniversary Update (1607), some drivers may still not be compatible. This may cause devices or software to malfunction. Such issues may occur after Memory integrity protection has been turned on or during the enablement process itself. If you’re an application developer and want to validate if your drivers and software packages are compliant with memory integrity, you can follow the steps outlined here.
    We worked hard to mitigate impacted experiences, so if an incompatibility exists for a boot-critical driver, Memory integrity protection will be silently turned off. If you encounter incompatibilities with other apps, Microsoft advises that you check for updates for the specific app and version encountering the issue before turning off memory integrity protection. The following links show some examples of commonly-used APIs that cause executable memory to be allocated, along with some example fixes:
    My Logitech webcam is one of those drivers that doesn't work now, with this turned on.

    But, Microsoft provides their own generic drivers for webcams(in Device Manager), just basic ones with no frills, but enough to work in Skype.

    Samsung and Logitech are notorious for not updating their certificates, so it is to be expected I guess
      My Computers


  7. Brink's Avatar
    Posts : 48,835
    64-bit Windows 10 Pro for Workstations build 19635
    Thread Starter
       #7

    Thank you for the heads up Cliff. :)
      My Computers

  8. Cliff S's Avatar
    Posts : 24,314
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       #8

    Your welcome Shawn.
    I have upgraded my main system to the RP(yeah I couldn't wait) and now have the option, and turned it on.
    If the generic driver hadn't worked, I would have turned it off, but I don't need any of the extra features anyhow.
    By the way, one will need to do the same for the web cams mic also.
      My Computers

  9. Brink's Avatar
    Posts : 48,835
    64-bit Windows 10 Pro for Workstations build 19635
    Thread Starter
       #9

    Hmm, this below is what I'm seeing in Windows 10 build 17639.

    I'm unable to turn off "Memory integrity", but I do not have any group policies configured despite the red message below.

    Turn On or Off Core Isolation Memory Integrity in Windows 10-core_isolation_build_17639.jpg
      My Computers


 

Tutorial Categories

Turn On or Off Core Isolation Memory Integrity in Windows 10 Tutorial Index Network & Sharing Instalation and Upgrade Browsers and Email General Tips Gaming Customization Apps and Features Virtualization BSOD System Security User Accounts Hardware and Drivers Updates and Activation Backup and Restore Performance and Maintenance Mixed Reality Phone


Related Threads
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 21:52.
Find Us




Windows 10 Forums