Error loading Arduino uno program

[PROGRAMER]

Arduino: 1.6.6 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 1,174 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: ser_open(): can't open device "\\.\COM7": Access is denied.


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

AND

Arduino: 1.6.6 (Windows 10), Board: "Arduino/Genuino Uno"

Sketch uses 1,174 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: ser_open(): can't open device "\\.\COM7": Access is denied.


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 1 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xde
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xde
Problem uploading to board.  See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

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[sleemanj]

> avrdude: ser_open(): can't open device "\\.\COM7": Access is denied.

Most likely to least likely (not an exhaustive list):

Incorrect Arduino board selected in Arduino IDE.
Incorrect port selected in Arduino IDE.
Incorrect driver installed in operating system.
Dead Arduino.
Incorrect operating system permissions.

[captbill]

You seem to have the wrong target configured. You are trying to upload to an Stk500 chip. Go 'tools|board' and choose 'Arduino UNO' and the go to 'Tools|Programmer' and choose 'AVR ISP'. Make sure you have the right com port too.

[sleemanj]

You are trying to upload to an Stk500 chip.

The serial bootloader emulates an stk500 programmer (or better said, the arduino serial bootloader uses the same protocol as the stk500).