Problem Uploading

Hello guys
I am having problems uploading to my arduino uno r3
i am getting the following error code

Arduino: 1.6.5 (Windows 8.1), Board: "Arduino/Genuino Uno"

Sketch uses 450 bytes (1%) 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.

C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM3 -b115200 -D -Uflash:w:C:\Users\BHAVAY~1\AppData\Local\Temp\build6787089157224871632.tmp/sketch_oct03a.cpp.hex:i

avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58

Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/

Copyright (c) 2007-2009 Joerg Wunsch

System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

Using Port : COM3

Using Programmer : arduino

Overriding Baud Rate : 115200

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x21

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x21

avrdude done. Thank you.

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

The serial port is connected fine and there is no problem in the usb,
The drivers are latest.
My reset buttton dosent do anything.
Please help

bhavay07:
The serial port is connected fine and there is no problem in the usb,
The drivers are latest.\

Thinks like that doesn't say a thing... What IS the latest? How do you know you don't got a USB problem? Did you do the loopback test? Because it just sound like you did not select the right COM / did not install the correct drivers to me.

COM port is selected alright and the drivers are also working fine and i have installed them as per one of arduino support members.

And the loopback test?

Ya i tried it and the messages i wrote were displayed back
no issues