where is thinkvantage button
The ThinkPad Button is a button situated in the  upper left corner of the keyboard on modern ThinkPads. It is intended to be a means of quick access to help and support. Technically it is nothing else than a button that can be configured to launch a certain piece of software. While originally it was grey and labelled ThinkPad, IBM later made it blue and called it the Access IBM Button. Lenovo relabelled it as ThinkVantage after it took over the ThinkPad line from IBM.