topic Re: Windows Security - Core Isolation issue in VivoBook

Windows Security - Core Isolation issue

johnpaultan07 — Thu, 01 Sep 2022 05:09:27 GMT

Battery or AC: Both (battery non removable)
Model: ASUS Laptop 15 M509DA
Frequency of occurrence:
Reset OS:
Screenshot or video:
System: Windows 11
========================
Detailed description：
I can't turn on the Core Isolation - Memory Integrity.
I only saw this error after doing Windows update recently and using Mumu Player which is a PC Emulator by Netease.
I contacted Microsoft Support and there is still no update fix for it. I saw online that the usb2ser.sys by MediaTek is from Asus. Need help.

Re: Windows Security - Core Isolation issue

Falcon_ASUS — Fri, 02 Sep 2022 03:27:44 GMT

johnpaultan07
Battery or AC: Both (battery non removable)
Model: ASUS Laptop 15 M509DA
Frequency of occurrence:
Reset OS:
Screenshot or video:
System: Windows 11
========================
Detailed description：
I can't turn on the Core Isolation - Memory Integrity.
I only saw this error after doing Windows update recently and using Mumu Player which is a PC Emulator by Netease.
I contacted Microsoft Support and there is still no update fix for it. I saw online that the usb2ser.sys by MediaTek is from Asus. Need help.

Windows Security - Core Isolation issue

@johnpaultan07
May I know why you want to turn this option on?
What is the BIOS and system version you are currently using?
[Notebook] How to check the model name and BIOS version | Official Support | ASUS Global Which version of Windows operating system am I running?Sorry for any inconvenience it may be caused.

Re: Windows Security - Core Isolation issue

johnpaultan07 — Fri, 02 Sep 2022 05:43:46 GMT

@Falcon_ASUS
Edition: Windows 11 Home Single Language
Version: 21H2
BIOS: X509DAP.302

I have technical support ticket ASUS Service No=A2202041761-0012

Re: Windows Security - Core Isolation issue

Falcon_ASUS — Mon, 05 Sep 2022 05:38:31 GMT

johnpaultan07
@Falcon_ASUS
Edition: Windows 11 Home Single Language
Version: 21H2
BIOS: X509DAP.302
I have technical support ticket ASUS Service No=A2202041761-0012

View post

@johnpaultan07
May I know why you want to turn this option on?

Re: Windows Security - Core Isolation issue

johnpaultan07 — Mon, 05 Sep 2022 08:02:07 GMT

@Falcon_ASUS My windows security is showing my device maybe vulneralbe is not turned off. That is a security issue.
I have technical support ticket ASUS Service No=A2202041761-0012

Re: Windows Security - Core Isolation issue

Falcon_ASUS — Tue, 06 Sep 2022 03:05:12 GMT

johnpaultan07
@Falcon_ASUS My windows security is showing my device maybe vulneralbe is not turned off. That is a security issue.
I have technical support ticket ASUS Service No=A2202041761-0012

View post

@johnpaultan07
I will forward the information to the relevant department. We will keep you updated and your consideration will be very much appreciated.

Re: Windows Security - Core Isolation issue

Asus_Predator — Tue, 06 Sep 2022 09:27:32 GMT

I have the same issue.

Re: Windows Security - Core Isolation issue

Falcon_ASUS — Thu, 08 Sep 2022 08:39:41 GMT

johnpaultan07
@Falcon_ASUS My windows security is showing my device maybe vulneralbe is not turned off. That is a security issue.
I have technical support ticket ASUS Service No=A2202041761-0012

View post

@johnpaultan07
Confirmed by the technical unit, according to the pictures, it may be that you have previously used MTK mobile phones or other MKT chip devices to make connections. Because this model is not shipped with MKT network card, if you have no impression of connecting other devices, we would recommend that you back up your data and restore the system. Sorry for any inconvenience it may be caused.
[Windows 11/10] How to reset the PC and remove all of my personal files, apps and settings | Official Support | ASUS Global

Re: Windows Security - Core Isolation issue

johnpaultan07 — Thu, 08 Sep 2022 09:35:18 GMT

@Falcon_ASUS I reached out to Microsoft support few nights ago and they checked into this issue. They said there's going to be a big Windows update but the tech doesn't know when yet he just told me to submit this issue under Microsoft feedback hub. Can ASUS provide an update patch to fix this issue instead of having to do PC reset?
It also says on Microsoft Support website under "Why do incompatible drivers prevent using Memory integrity?" below:
I can't post the link on here because it says "I need to be around for a little while longer before you can post links".
"If you want to restore the Memory integrity setting, you can try to resolve a driver incompatibility by seeing if an updated and compatible driver is available through Windows Update or from the driver manufacturer. Microsoft does not recommend that you delete drivers to attempt to restore this setting."
I have technical support ticket ASUS Service No=A2202041761-0012

Re: Windows Security - Core Isolation issue

johnpaultan07 — Thu, 06 Oct 2022 06:16:28 GMT

@Falcon_ASUS
Update: Today I updated my Windows 11 to the latest version 22H2. Now the Windows Security is showing ok and it's not flagging Core Isolation anymore. But I still can't turn on the Core Isolation because of the old Mediatek driver usb2ser.sys

Re: Windows Security - Core Isolation issue

Falcon_ASUS — Fri, 07 Oct 2022 05:42:22 GMT

johnpaultan07
@Falcon_ASUS
Update: Today I updated my Windows 11 to the latest version 22H2. Now the Windows Security is showing ok and it's not flagging Core Isolation anymore. But I still can't turn on the Core Isolation because of the old Mediatek driver usb2ser.sys

View post

@johnpaultan07
As in the previous reply to you, this model is not shipped with MKT network card, if you have no impression of connecting other devices, we would recommend that you back up your data and restore the system. Sorry for any inconvenience it may be caused.

Re: Windows Security - Core Isolation issue

johnpaultan07 — Fri, 07 Oct 2022 08:39:18 GMT

What is MKT network card? Will removing it disable any of the usb hub on it?

Re: Windows Security - Core Isolation issue

johnpaultan07 — Fri, 07 Oct 2022 13:47:17 GMT

@Falcon_ASUS After I did few more Windows update after updating to the lastest version 22H2 the Core Isolation issue is getting flagged by Windows Security again.

Re: Windows Security - Core Isolation issue

Falcon_ASUS — Tue, 11 Oct 2022 02:09:50 GMT

johnpaultan07
@Falcon_ASUS After I did few more Windows update after updating to the lastest version 22H2 the Core Isolation issue is getting flagged by Windows Security again.

View post

@johnpaultan07
This is the picture you provided earlier, it is described that the problem may be caused by the MKT device.

If the situation persists after the system update, we would recommend that you back up your data and restore the system.
[Windows 11/10] How to reset the PC and remove all of my personal files, apps and settings | Official Support | ASUS GlobalSorry for any inconvenience it may be caused.

Re: Windows Security - Core Isolation issue

johnpaultan07 — Wed, 12 Oct 2022 04:21:16 GMT

@Falcon_ASUS right now I contacted ASUS APAC support trying to update the BIOS firmware as Microsoft Engineers said it could fix the core Isolation issue. But ASUS APAC support still don't have an answer since when I try to update the firmware to X509DA 309 but my system firmware says X509DAP 302.
ASUS Service No=A2202041761-0027

Re: Windows Security - Core Isolation issue

RAJU_MSC_MATHEM — Fri, 14 Oct 2022 18:25:01 GMT

johnpaultan07
@Falcon_ASUS right now I contacted ASUS APAC support trying to update the BIOS firmware as Microsoft Engineers said it could fix the core Isolation issue. But ASUS APAC support still don't have an answer since when I try to update the firmware to X509DA 309 but my system firmware says X509DAP 302.
ASUS Service No=A2202041761-0027

View post

The solution is very simple, delete this file "usb2ser.sys" from your windows 11. if you don't want to connect your smartphone on your laptop anymore.

The location of this "usb2ser.sys" is C:\Windows\system32\drivers\
You must boot windows into safe mode and delete the file "usb2ser.sys" , if you received any access denied message means, then take ownership of the file or folder
visit below site for taking ownership of file help
Add Take Ownership to Context Menu in Windows 11 Tutorial | Windows 11 Forum (elevenforum.com)

Re: Windows Security - Core Isolation issue

johnpaultan07 — Sat, 15 Oct 2022 03:15:25 GMT

RAJU.MSC.MATHEMATICS
https://zentalk.asus.com/en/discussion/comment/232332#Comment_232332
The solution is very simple, delete this file "usb2ser.sys" from your windows 11. if you don't want to connect your smartphone on your laptop anymore.
The location of this "usb2ser.sys" is C:\Windows\system32\drivers\
You must boot windows into safe mode and delete the file "usb2ser.sys" , if you received any access denied message means, then take ownership of the file or folder
visit below site for taking ownership of file help
Add Take Ownership to Context Menu in Windows 11 Tutorial | Windows 11 Forum (elevenforum.com)

View post

I don't want to remove it because Microsoft doesn't advise doing it. I've been talking to Microsoft engineers and said more diagnostics also logs need to be done first. Thanks 🙏

Re: Windows Security - Core Isolation issue

RAJU_MSC_MATHEM — Sat, 15 Oct 2022 10:34:22 GMT

johnpaultan07
https://zentalk.asus.com/en/discussion/comment/232769#Comment_232769
I don't want to remove it because Microsoft doesn't advise doing it. I've been talking to Microsoft engineers and said more diagnostics also logs need to be done first. Thanks 🙏

View post

Will you conform that, did you installed the MediaTek driver to windows 11 manually?

Re: Windows Security - Core Isolation issue

johnpaultan07 — Sat, 15 Oct 2022 10:44:43 GMT

RAJU.MSC.MATHEMATICS
https://zentalk.asus.com/en/discussion/comment/232797#Comment_232797
Will you conform that, did you installed the MediaTek driver to windows 11 manually?

View post

No sir it came installed already when my laptop was still Windows 10 home. That's what is from what I know and ASUS APAC support said it's an old driver.

Re: Windows Security - Core Isolation issue

RAJU_MSC_MATHEM — Sun, 16 Oct 2022 13:20:49 GMT

johnpaultan07
https://zentalk.asus.com/en/discussion/comment/232819#Comment_232819
No sir it came installed already when my laptop was still Windows 10 home. That's what is from what I know and ASUS APAC support said it's an old driver.

View post

Then try to update the Mediatek driver otherwise core isolation will not turn on. Windows 11 OS have strict driver policies, since few drivers worked fine windows 10 will not work on windows 11 core isolation.
New feature has been introduced from Windows 11 22h2,