Windows Security - Core Isolation issue
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08-31-2022 10:09 PM
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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10-17-2022 06:55 AM
johnpaultan07One more confirmation is needed, did mediatek wifi chip device is come with laptop?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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10-17-2022 08:18 PM
johnpaultan07@johnpaultan07https://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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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.
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10-18-2022 05:49 AM
RAJU.MSC.MATHEMATICSSorry 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.https://zentalk.asus.com/en/discussion/comment/233144#Comment_233144
One more confirmation is needed, did mediatek wifi chip device is come with laptop?
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10-18-2022 06:51 AM
johnpaultan07Which Wifi device brand is embedded in your laptop?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.
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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
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10-19-2022 09:22 AM
RAJU.MSC.MATHEMATICSI 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.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
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