Duvida - Upload do blink para o Arduino

[metRo_]

http://arduino.cc/en/Guide/Windows

4 | Install the drivers
Installing drivers for the Arduino Uno with Windows7, Vista, or XP:
-Plug in your board and wait for Windows to begin it's driver installation process.  After a few moments, the process will fail, despite its best efforts
-Click on the Start Menu, and open up the Control Panel.
-While in the Control Panel, navigate to System and Security. Next, click on System. Once the System window is up, open the Device Manager.
-Look under Ports (COM & LPT).  You should see an open port named "Arduino UNO (COMxx)"
-Right click on the "Arduino UNO (COmxx)" port and choose the "Update Driver Software" option.
-Next, choose the "Browse my computer for Driver software" option.
-Finally, navigate to and select the Uno's driver file, named "ArduinoUNO.inf", located in the "Drivers" folder of the Arduino Software download (not the "FTDI USB Drivers" sub-directory).
-Windows will finish up the driver installation from there.