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Windows Security - Core Isolation issue

johnpaultan07
Star II
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.
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35 REPLIES 35

RAJU_MSC_MATHEM
Zen Master I
johnpaultan07

https://zentalk.asus.com/en/discussion/comment/233143#Comment_233143

After I updated to version 22H2 and did all windows update the Core Isolation still cannot be turned on because the same issue of incompatible driver by Mediatek usb2ser.sys


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One more confirmation is needed, did mediatek wifi chip device is come with laptop?

Falcon_ASUS
Moderator
Moderator
johnpaultan07

https://zentalk.asus.com/en/discussion/comment/233143#Comment_233143

After I updated to version 22H2 and did all windows update the Core Isolation still cannot be turned on because the same issue of incompatible driver by Mediatek 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.

johnpaultan07
Star II
RAJU.MSC.MATHEMATICS

https://zentalk.asus.com/en/discussion/comment/233144#Comment_233144

One more confirmation is needed, did mediatek wifi chip device is come with laptop?


View post
Sorry but I don't understand that question. Main problem is Windows update didn't fix the core isolation issue and ASUS is not doing anything about it to release a patch fix.

RAJU_MSC_MATHEM
Zen Master I
johnpaultan07

https://zentalk.asus.com/en/discussion/comment/233148#Comment_233148

Sorry but I don't understand that question. Main problem is Windows update didn't fix the core isolation issue and ASUS is not doing anything about it to release a patch fix.


View post
Which Wifi device brand is embedded in your laptop?
In my laptop, a Qualcomm wifi device is embedded.
The same issue happened with another user with the same driver, so he removed that driver and memory integrity turned on. That user is posted his issue in Microsoft community
usb2ser.sys - Microsoft Community


johnpaultan07
Star II
RAJU.MSC.MATHEMATICS

https://zentalk.asus.com/en/discussion/comment/233324#Comment_233324

Which Wifi device brand is embedded in your laptop?

In my laptop, a Qualcomm wifi device is embedded.

The same issue happened with another user with the same driver, so he removed that driver and memory integrity turned on. That user is posted his issue in Microsoft community

usb2ser.sys - Microsoft Community


View post
I don't even want to remove it because I'm worried it might affect something. Microsoft does not recommend that you delete drivers to attempt to restore this setting.

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