Try This it Worked for me.
Good Luck!!
http://www.jormc.es/2014/10/24/arduino-avrdude-ser_open-cant-open-device-com3-access-is-denied/
Try This it Worked for me.
Good Luck!!
http://www.jormc.es/2014/10/24/arduino-avrdude-ser_open-cant-open-device-com3-access-is-denied/