CreateProfile

CreateProfile.ps1

Add-Type -TypeDefinition '
using System;
using System.Runtime.InteropServices;
using System.Text;

public class UserProfile
{
    [DllImport("userenv.dll")]
    public static extern int CreateProfile(
        [MarshalAs(UnmanagedType.LPWStr)] string pszUserSid,
        [MarshalAs(UnmanagedType.LPWStr)] string pszUserName,
        [Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszProfilePath,
        uint cchProfilePath
    );
}
'

$path = [System.Text.StringBuilder]::new(260)
$user = New-LocalUser Test -NoPassword
[UserProfile]::CreateProfile(
    $user.Sid.ToString(),
    $user.Name,
    $path,
    [uint32]260
)