Arduino Upload sketch Error

Development Tools Uploading
1

Arduino: 1.8.4 (Windows 10), Board: "Arduino/Genuino Uno"

Archiving built core (caching) in: C:\Users\user\AppData\Local\Temp\arduino_cache_467933\core\core_arduino_avr_uno_0c812875ac70eb4a9b385d8fb077f54c.a
Sketch uses 928 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 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\user\AppData\Local\Temp\arduino_build_554292/Blink.ino.hex:i

avrdude: Version 6.3, compiled on Jan 17 2017 at 12:00:53
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 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
AVR Part : ATmega328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :

Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack

eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00

Programmer Type : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f (probably m328p)
avrdude: reading input file "C:\Users\user\AppData\Local\Temp\arduino_build_554292/Blink.ino.hex"
avrdude: writing flash (928 bytes):

Writing | ################################################## | 100% 0.15s

avrdude: 928 bytes of flash written
avrdude: verifying flash memory against C:\Users\user\AppData\Local\Temp\arduino_build_554292/Blink.ino.hex:
avrdude: load data flash data from input file C:\Users\user\AppData\Local\Temp\arduino_build_554292/Blink.ino.hex:
avrdude: input file C:\Users\user\AppData\Local\Temp\arduino_build_554292/Blink.ino.hex contains 928 bytes
avrdude: reading on-chip flash data:

Reading | #########################An error occurred while uploading the sketch
######################### | 100% 0.15s

avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0000
0x62 != 0x0c
avrdude: verification error; content mismatch

avrdude done. Thank you.

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

2

This can sometimes be fixed by re-burning the bootloader. I don't know your experience level and whether or not you can still return your Arduino.

You would need either another Arduino to use as "Arduino as ISP' or some type of Avr-ISP like USBasp, Usbtiny or a more expensive Avr-ISP. The first choices work just fine for most programming at the hobbyist level.

I like the USBasp and they are cheap enough to buy two.With two, it's easy to upgrade the firmware on the USBasps.
Do some Google searches on "Arduino Burning Bootloader" and check out some Youtube Videos. It's a little scary at first but you can have a lot of fun doing it.