Will my PC run w11-24h2?... oh no! my Surface Go v1.0 will not be because of POPCNT - so I put Linux on it! https://github.com/linux-surface/linux-surface

Test-CPUFeature.ps1

function Test-CPUFeature {
    param (
        [Parameter(Mandatory=$true)]
        [ValidateSet("SSE4.2", "SSE4A")]
        [string]$Feature
    )

    $signature = @"
    [DllImport("kernel32.dll")]
    public static extern IntPtr GetCurrentProcess();

    [DllImport("kernel32.dll")]
    public static extern IntPtr GetCurrentThread();

    [DllImport("kernel32.dll", SetLastError=true)]
    public static extern bool GetThreadContext(IntPtr hThread, ref CONTEXT lpContext);

    [StructLayout(LayoutKind.Sequential)]
    public struct CONTEXT
    {
        public uint ContextFlags;
        public uint Dr0;
        public uint Dr1;
        public uint Dr2;
        public uint Dr3;
        public uint Dr6;
        public uint Dr7;
        public FLOATING_SAVE_AREA FloatSave;
        public uint SegGs;
        public uint SegFs;
        public uint SegEs;
        public uint SegDs;
        public uint Edi;
        public uint Esi;
        public uint Ebx;
        public uint Edx;
        public uint Ecx;
        public uint Eax;
        public uint Ebp;
        public uint Eip;
        public uint SegCs;
        public uint EFlags;
        public uint Esp;
        public uint SegSs;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 512)]
        public byte[] ExtendedRegisters;
    }

    [StructLayout(LayoutKind.Sequential)]
    public struct FLOATING_SAVE_AREA
    {
        public uint ControlWord;
        public uint StatusWord;
        public uint TagWord;
        public uint ErrorOffset;
        public uint ErrorSelector;
        public uint DataOffset;
        public uint DataSelector;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 80)]
        public byte[] RegisterArea;
        public uint Cr0NpxState;
    }
"@

    Add-Type -MemberDefinition $signature -Name Win32Utils -Namespace Win32API

    $context = New-Object Win32API.Win32Utils+CONTEXT
    $context.ContextFlags = 0x10001 # CONTEXT_FULL

    $thread = [Win32API.Win32Utils]::GetCurrentThread()
    [Win32API.Win32Utils]::GetThreadContext($thread, [ref]$context)

    # CPUID
    $context.Eax = 1
    [Win32API.Win32Utils]::GetThreadContext($thread, [ref]$context)

    switch ($Feature) {
        "SSE4.2" { $support = ($context.Ecx -band 0x100000) -ne 0 }
        "SSE4A" { $support = ($context.Ecx -band 0x200) -ne 0 }
    }

    return $support
}

$sse42Support = Test-CPUFeature -Feature "SSE4.2"
$sse4aSupport = Test-CPUFeature -Feature "SSE4A"

if ($sse42Support -or $sse4aSupport) {
    Write-Host "This processor supports SSE4.2 or SSE4A."
    if ($sse42Support) { Write-Host "SSE4.2 is supported." }
    if ($sse4aSupport) { Write-Host "SSE4A is supported." }
} else {
    Write-Host "This processor does not support SSE4.2 or SSE4A."
}