Hi a couple of days ago my laptop said it needed to reboot cos of Skype cos of update. I did it and from then when I turn on my laptop there's only a wiring sound coming from inside laptop and nothing else screen doesn't even turn on, it went on for at least a day then it was ok then I switch off and same thing it's been going on for at least 15 hours. I tried switch off switch on remove bat leave switched off tried all I know and nothing... Any help???