xmegz

 var ticks = Stopwatch.GetTimestamp();
 var uptime = ((double)ticks) / Stopwatch.Frequency;
 return TimeSpan.FromSeconds(uptime);

xmegz

public static string GetLoggedInUserName()
{
try
                    {
                        using (ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT UserName FROM Win32_ComputerSystem"))
                        {
                            foreach (ManagementObject queryObj in searcher.Get())
                            {
                                string userName = null;

xmegz

public static string GetComputerManufacturer()
{
	ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
	ManagementObjectCollection moc = mc.GetInstances();
	if (moc.Count != 0)
        {
          foreach (ManagementObject mo in mc.GetInstances())
	  {
            return mo["Manufacturer"].ToString();
	  }

xmegz

public static string GetHostName()
     {
           
       try
       {
         return Dns.GetHostEntry("").HostName;
       }
       catch {}
                
      return Environment.MachineName;