NetworkTool/windows/NetworkTool.Client/Services/AdminPrivilegeService.cs

using System.Security.Principal;

namespace NetworkTool.Client.Services;

public sealed class AdminPrivilegeService
{
    public bool IsAdministrator()
    {
        using var identity = WindowsIdentity.GetCurrent();
        var principal = new WindowsPrincipal(identity);
        return principal.IsInRole(WindowsBuiltInRole.Administrator);
    }
}