Last few days, my internet connection suddenly disconnected, no matter how many times i have tried to restart the modem for reconnecting, but I couldn’t get back the internet connection. After that, I have decided to restart the windows this time and try another times, unfortunately it still the same. After fewer times restarting windows, I couldn’t login to my windows anymore and I do not know why, perhaps my laptop is attacked by virus. I have no choice but to format the harddisk and reinstall the Windows again. No wonder my internet connection has problem in that day.