My Arduino uno is not found in Device Manager

Hi,

OS: windows 10
Board: Arduino Uno.

I installed Arduino IDE software in my laptop. Then i connected my arduino , but when i opened device

manager my Arduino Uno is not listed in PORTS(COM AND LPT) section of Device Manager.

Green LED will glow and LED near PIN 13 will also blink when i connect it to my laptop. I searched

online to fix this, but the result is same. My arduino uno wont show up in the list. So I cant select

serial port in TOOL->PORT section.I could not intall driver. I have attached the photo of device

manager when arduino is connected to laptop. There is no change in device manager either i connect

my arduino or disconnect my arduino. I also followed every step to install software as in arduino.cc

website.There is also Windows Firewall and Windows Defender installed in my system. So pls someone help me in solving this problem. I wasted 3 days to solve the problem ,but could not succed.

When i opened tool section, it shows COM3 and COM4. But arduino in not listed in device manager. When i upload Blink program,it shows error. That error in shown in the attachment.

Pls someone help. I got really frustrated in this.

(deleted)

I have attached photo of my arduino and also photo of tool section in the IDE . There is two options in

Port section COM3 , COM4 even if i dint connect my arduino. After connecting also, it shows the same.

My Laptop : LENOVO

My laptop can detect pendrive , but not my arduino. Then I have not tried in other laptop.

I have attached photo of my arduino and also photo of tool section in the IDE . There is two options in

Port section COM3 , COM4 even if i dint connect my arduino. After connecting also, it shows the same.

My Laptop : LENOVO

My laptop can detect pendrive , but not my arduino. Then I have not tried in other laptop.

Thank You for giving me the instructions for LOOP BACK TEST. In my case it works fine. Whatever i send

in serial monitor is returned. But Still i am getting following error.

Arduino: 1.8.0 (Windows 10), Board: “Arduino/Genuino Uno”

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.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x30
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x20
An error occurred while uploading the sketch

This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.

Have you tried a search for "stk500" ?

So many answers its quite astounding really.

Yeah. I followed stk500. I performed oop back test. It works. But device manager wont show up my arduino uno

Sorry. The actual problem was i dint insert cable deep into my arduino. Now i inserted properly. It is working fine. Sorry for inconvenience.

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