Learn to Create or Update, Deploy and Debug a Windows Developer Program for IoT project.
Open Visual Studio. Select File -> New Project and Select Templates -> Visual C++ -> Windows for IoT -> Galileo Wiring app

#include "stdafx.h"
#include "arduino.h"
int _tmain(int argc, _TCHAR* argv[])
{
return RunArduinoSketch();
}
int led = 13; // This is the pin the LED is attached to.
void setup()
{
pinMode(led, OUTPUT); // Configure the pin for OUTPUT so you can turn on the LED.
}
// the loop routine runs over and over again forever:
void loop()
{
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
Log(L"LED OFF\n");
delay(1000); // wait for a second
digitalWrite(led, HIGH); // turn the LED on by making the voltage HIGH
Log(L"LED ON\n");
delay(1000); // wait for a second
}This code is included in the default template, and is included here for reference.
LEDs are diodes which will emit light when powered. They are polarized - meaning they work only when plugged in correctly.

Press F5 to build and deploy your project.
You may be prompted for credentials. Enter:
Username: mygalileo\Administrator
Password: admin

Under certain network conditions, deploy by name might fail. In this case, it would be best to deploy by IP.
Copy the IP address from Galileo Watcher, by right clicking on the Galileo instance and select Copy IP Address:

Open the project properties by right clicking on the project in Solution Explorer.
Paste the copied IP address into the ‘Remote Server Name’ field on the debugging tab in Visual Studio:

You should see the light blinking. If it isn’t blinking, try reversing the LED leads.
If you have a project which was created before December 1st, 2014, you will need to convert it to Lightning.
Manage Nuget PackagesSelect Installed Packages in the left column
Uninstall to remove Galileo C++ SDKOnline then select Nuget.orgSearch box in the upper right hand corner of the dialog, search for Microsoft IoT C++Select Install
The Microsoft IoT team and the community are adding features and fixing bugs in the SDK. In order to take advantage of these changes, you’ll need to manually update your project.
Manage Nuget PackagesSelect Updates from the left column

If you’d like to use a prerelease version, select Include Prereleases from the dropdown

Update button to update your project.