Issues with USB driver and Arduino Unohttp://developers.de/blogs/damir_dobric/archive/2016/03/01/issues-with-usb-driver-and-arduino-uno.aspxSometimes some device (IBM Think Pad or even Surface PRO 4) might get some issues with USB drivers. In that case your board is not recognized in Arduino IDE and you cannot select COM port, where the board is connected. If that happen, please first rebootenCommunityServer 2008 SP1 (Build: 30619.63)