Hello, i have a laptop samsung. before I can use the internet through wireless broadbrand. Then suddenly when I attempt to install a game, I can't connect to internet anymore. I ask an IT to fix the problem now I can't use the laptop. When I turned it on it will shut down right away roughly 3 secs. it will turn of. I can't even see the windows. What will I do? The IT said that there might be a problem with the HDD I don't know what is it?