hi,
i install drivers shown here http://www.arduino.cc/en/guide/windows
but message still not change " board @ com1 not available ", , cant' upload sketch board?!
i install drivers shown here http://www.arduino.cc/en/guide/windows
but message still not change " board @ com1 not available ", , cant' upload sketch board?!
the problem solved, can't delete topic 

Arduino Forum > Using Arduino > Installation & Troubleshooting > Board at COM1 is not available
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