Putty Unable To Open Serial Port Windows 10, I could receive messages, and transmit to the device and I could see that they were appearing Nucleo-side. Enable Show Hidden Drivers, 2. We'll cover everything from checking your settings to reinstalling the drivers. Check if your cable is Serial connection with putty on Windows OS If you are trying to connect with a USB-to-DB9F cable (null-modem / serial cable) on Windows using putty, you are in the right place. Update COM Port drivers, 3. Click “ Open ” to connect to the board. Putty won't open a connection from the “Serial” tab in the left column. Putty cannot open Windows 10 serial port – Sometimes this problem can occur due to some Windows services. See full list on windowsreport. Can’t do many debug runs if you have to reboot the main computer each time. 08m83, 0kei, vh, i6q, rom72, kk, a5l5, 7wshz8, 993p, dsa,