Hello
Problem is that Win11 is keeping Hyper-V enabled most of the time, and this prevents to have VMware Workstation running natively (only way AFAIK, to get Intel VT-x). With Win10 there was this well-known way with:
To disable:
bcdedit /set hypervisorlaunchtype off
To enable:
bcdedit /set hypervisorlaunchtype auto
requiring each time a reboot. But this is not working with Win11.
On Win11, I was able to get Workstation running in native mode after uninstalling everything requiring HyperV (WSL aka Windows Subsystem Linux, Windows Sandbox, disabling also Windows Defender Core Isolation, etc).
But otherwise there is another solution : use GNS3 Microsoft Hyper-V VM which is ready-to-use
https://gns3.com/software/download-vm
Inside there is some PowerShell script which will deploy the HyperV VM and enabling nested virtualization:
create-vm.ps1
if ($Manufacturer -eq "GenuineIntel") {
if ($WindowsVersion -eq 10 -and $BuildNumber -lt 14393) {
Write-Error "Hyper-V with nested virtualization is only supported on Windows 10 Anniversary Update (build 10.0.14393) or later" -ErrorAction Stop
}
New-VM -Name "GNS3 VM" -Generation 1 -MemoryStartupBytes 1GB -SwitchName $SwitchName
}
ElseIf ($Manufacturer -eq "AuthenticAMD") {
if ($WindowsVersion -eq 10 -and $BuildNumber -lt 19640) {
Write-Error "Windows 10 (build 10.0.19640) or later is required by Hyper-V to support nested virtualization with AMD processors" -ErrorAction Stop
}
With that I was able to do my Network labs on GNS3 on Win11.