kmliaw:
avrdude: ser_open(): can't open device "\.\COM16": The semaphore timeout period has expired.
In the IDE, click on Tools->Port, and ensure that you have a COM16 listed there. If not, look to see if you have another one that isn't assigned to anything else. That will likely be your Arduino's port number.
In my last post, I also showed how to find the ports in Device Manager. Check in there. There should be one labeled "Arduino...".