arduino programmer is not responding

my arduino nano suddenly give error message programmer is not responding. i've already checked the settings and its setup correctly, the device manager seems fine, and already tried to connect pin rx and tx and its send data. but i cant upload any program to board and cant access serial communication using other program (delphi). anyone can help
avrdude: Version 6.3-20171130
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 : COM7
Using Programmer : arduino
Overriding Baud Rate : 57600
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: 2
Firmware Version: 1.16
Vtarget : 0.0 V
Varef : 0.0 V
Oscillator : Off
SCK period : 0.1 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\CVGS\AppData\Local\Temp\arduino_build_184555/mainprog.ino.hex"
avrdude: writing flash (9030 bytes):

Writing | avrdude: ser_recv(): read error: Access is denied.

avrdude: stk500_recv(): programmer is not responding
avrdude: ser_send(): write error: sorry no info avail
avrdude: ser_recv(): read error: Access is denied.

Looks like your bootload code got wiped out. Do you have a Programmer to reinstall it?
Or can you download the Arduino as ISP Programmer into another Arduino and use it as a Programmer?

Try restarting your computer. Sometimes glitch will cause a COM port to get stuck in an unusable state and the restart fixes that.

Hi,
Witch OS are you running?
Windows 10 1903 or 1809?