I've been working on an Arduino project over the weekend. This afternoon, when I got in class, I decided to plug my Arduino and import the final version of my code into my Arduino Uno. Once uploaded, I decided to plug a 9v battery into my breadboard. As soon as I plugged it, my laptop which was still connected via usb shut down. I can't turn it back on anymore.
The Arduino was connected to the breadboard via the 5v and gnd plugs (going to + and - respectively). The 9v battery was connected to the breadboard with the positive going to + and the negative going to -.
Is my laptop totalled? Is there anything I can do before sending it to Acer?