After upgrading to Windows 11, you may see a vulnerable driver notification at startup that mentions the driver file iqvw64e.sys. Here’s the full message:
Program Compatibility Assistant A driver cannot load on this device Driver: iqvw64e.sys iqvw64e.sys A security setting is detecting this as a vulnerable driver and blocking it from loading.

Cause
iqvw64e.sys is an outdated, vulnerable Intel Network Adapter Diagnostic Driver often blocked by Windows 11 (specifically 24H2 and higher).
File Info
Filename: C:\WINDOWS\System32\drivers\iqvw64e.sys Company Name: ND_QV -> Intel Corporation Internal Name: iQVW64.SYS Original Name: iQVW64.SYS Product: Intel(R) iQVW64.SYS Description: Intel(R) Network Adapter Diagnostic Driver File Version: 1.3.2.18 built by: WinDDK Product Version: 1.3.2.18 Copyright: Copyright (C) 2002-2019 Intel Corporation All Rights Reserved.
Resolution
The iqvw64e.sys service is loaded by a service named NAL. To resolve the issue, follow one of the methods below:
Option 1: Update the Intel(R) Network Connections software
Visit the Intel Support site and download the latest version of the Intel Network Connections software, and install it.
Option 2: Backup and delete the iqvw64e.sys driver service
Open Command Prompt (admin) and run these commands to backup the iqvw64e.sys driver and delete it.
md C:\DrvStore PnpUtil /export-driver * C:\DrvStore rundll32.exe c:\windows\system32\pnpclean.dll,RunDLL_PnpClean /DRIVERS /MAXCLEAN reg export "HKLM\SYSTEM\CurrentControlSet\Services\NAL" C:\NAL.reg sc.exe delete NAL
Restart Windows and rename the following file:
C:\WINDOWS\System32\drivers\iqvw64e.sys
to the following:
C:\WINDOWS\System32\drivers\iqvw64e.sys.old
Restart Windows.
Option 3: Uninstall the Intel(R) Network Connections software
An Intel employee posted the following:
The Intel(R) Network Connections software manages your Ethernet Network Controller (Wired Ethernet Connection) drivers.If you don’t regularly connect your laptop to the internet using a cable, your computer should be OK with the generic driver that Windows* will automatically install once you remove the software. For more information, we can recommend engaging our team over at the /community/tech/wired/content Wired Ethernet Support Community, or your computer manufacturer.
Reference: What is Intel(R) Network Connections Driver and can I delete it. – Intel Community
You should be able to uninstall the Intel(R) Network Connections software via Apps and Features in Settings.

Hopefully, that should resolve the iqvw64e.sys warning at startup.
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