COM4 port not appearing

Projects Interfacing w/ Software on the Computer
1

I am using Aruino UNO R3. It was working fine. To modify code when I connected to Dell Inspiron 7548 Window 10. COM4 port is not appering. Serial Port 6 & 7 which are Bluetooth links are appearing.

I uninstalled the Arduino IDE and reinstalled. Board is lighting and working as per previous code.

I installed and updated drivers but same result. Checked Device Manager for Serial Port COM4. Unhide all devices.

I tried to get Board Information. Message is "Native Serial Port, can't obtain info".

I activated verbose but it is stuck during uploading below message is appearing.

avrdude: Version 6.3-20190619
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 : COM6
Using Programmer : arduino
Overriding Baud Rate : 115200

Please help.
Regards

2

Arduinos typically sit on different COM port with different PCs.

3

Yep even I had such an experience.

I changed my computer so on my old one it was COM3 but on my other computer it was COM4.

pankajsharma200:
...I activated verbose but it is stuck during uploading below message is appearing...

Then the device on that communication port is not an Arduino.

4

So what happens in Windows device manager when you connect the board? Any yellow triangles? I have a suspicion that you're using a clone and forgot to install the driver; else you might have blown up the USB-to-TTL chip.