VMware Tools VMXNET3 NIC Installation Fails on Windows Server 2022 Due to DeviceInstall Restrictions

Products

• VMware vSphere ESXi

Issue/Introduction

The virtual Network Interface Card (NIC) is missing or not reflecting within the Guest OS on Windows Server 2022. VMware Tools installation fails to automatically install the virtual network drivers.

Environment

VMware vSphere 8.0.x

Windows Server 2022 Guest OS

Cause

Windows encountered a problem installing the drivers for your device

The Windows operating system is actively blocking Plug and Play (PnP) device installations via a restrictive system policy. The registry key HKLM\SOFTWARE\Policies\Microsoft\Windows\DeviceInstall\Restrictions\DenyUnspecified is explicitly set to 1, which prevents the VMware Tools installer from securely validating and deploying the virtual network adapters.

Resolution

 

1. Access the affected virtual machine via the vSphere Web Console.

2. Open an elevated Command Prompt within the Windows Server 2022 Guest OS.

3. Execute the following command to modify the registry and lift the device installation restriction: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\DeviceInstall\Restrictions" /v DenyUnspecified /t REG_DWORD /d 0 /f

4. Re-run or repair the VMware Tools installation.

5. Open Device Manager (devmgmt.msc) and verify the NICs are now correctly enumerated and reflecting within the OS.

 

Additional Information

If organizational security policies (GPOs) actively revert this registry key, engage your internal Active Directory or Windows Security team to establish a persistent exception for VMware virtual hardware classes.