IDE is not uploading files to Brand New Arduino Uno

Hi

I recently bought an Arduino Uno and installed everything necessary. I tried it on both USB ports on my computer. However, the Ports menu only shows COM1. There is a line on the bottom of the IDE which says Arduino Uno on COM1.

Any program I try fails to upload to the board. When I tried the Blink example, the following error message appeared:
Arduino: 1.6.3 (Windows 7), Board: "Arduino Uno"

Sketch uses 1,030 bytes (3%) of program storage space. Maximum is 32,256 bytes.

Global variables use 9 bytes (0%) of dynamic memory, leaving 2,039 bytes for local variables. Maximum is 2,048 bytes.

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x43

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x43

Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x43

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x43

avrdude: stk500_recv(): programmer is not responding

and so on. Until,

This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.

I have a Windows 7 64 bit desktop.

Any help will be appreciated.