Step 1: Check if the driver is installed correctly

Open the Device Manager on your Windows system and check under Ports (COM & LPT). If the COM port is listed without any issues, the driver is installed correctly. If there is a warning or error icon, you may need to reinstall or update the driver.

Step 2: Identify if the port is being used by another program

If the port is in use by another program, you will need to find out which program is using it. You can use the Xcombusy v1.1.0 tool from DriverGenius to easily detect this. Download it from here: Download Xcombusy v1.1.0

Step 3: Close the program using the COM port

Once you have identified which program is using the COM port, close the program to free up the port. If the program is unresponsive, you can use Task Manager to force close it.

Step 4: Restart your computer

If the port is still occupied after closing the program, restart your computer. This will release any processes that may still be using the port.

Step 5: Try a different COM port

If the issue persists, try connecting your device to a different COM port on your system. You can change the port in Device Manager under the Port Settings tab.

Step 6: Reconnect the device

After following the above steps, reconnect your device to the COM port. Your device should now be recognized without the "COM Port is using" error.