Arduino Nano Clone "Programmer not responding" error

i bought arduino clone from aliexpress,the link is
https://www.aliexpress.com/item/1PCS-Promotion-Funduino-Nano-3-0-Atmega328-Controller-Compatible-Board-for-Arduino-Module-PCB-Development-Board/32531372300.html?spm=a2g0s.9042311.0.0.fajdyu

it has ch340 chip.
i have windows 7 installed and i have installed the correct ch340 drivers.
the drivers are working perfect.
when i connect my arduino nano clone. it is recognized.power light is up and the L is also blinking.
but when i want to upload a program,i get the error below

avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x6e
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x6e

following steps i took to troubleshoot the problem
1.checked drivers,they are fine,nano is recognized when connected to the computer
2.checked the port,right port is selected
3. tried different boards i.e arduino pro,micro,etc from tools board menu but none worked
4. on some forums i found that bootloader may be missing,so i tried to install the bootloader with arduino leonardo but it didnot worked,so i messed the bootloader and the L led was gone.
5. i tried to burn bootloader with arduino uno r3 and the bootloader was installed succefully,the L light came back and is blinking.so it means bootloader is working. during burning bootloader tx and rx light on arduino nano board were blinking .

after installing bootloader, facing the same issue programmer not responding.
i tried to change baud rate from ch340 drivers setting from device manager. still same problem

kindly suggest me possible solution

Dont make changes to com port settings in windows unless you know for sure what you are doing.
The IDE will make any changes it needs based on other factors.

Maybe you should reset the com port list inside windows.