A beginner’s guide on how to use the Arduino Microcontroller. It goes through the basics of plugging it into the computer, writing simple microcontroller code and then uploading that code to the Microcontroller. It also has a small beginner’s tutorial on C, which is the programming language that the Arduino uses.
If you ever get annoyed by having to logon to your computer every time you turn it on, just follow the instructions in that link below. The process does not involve removing the password, but rather tells Windows to log on using that specific information every time the computer is turned on.