My Minecraft isn't opening?

It was working 10 minuets ago but it has just stopped now. I'm on a sony vaio laptop, I've uninstalled and reinstalled java and I've redownloaded minecraft but its not working. When I restart my computer Skype is also having issues so they might be connected. I click on the icon for minecraft and it just doesn't load. In task manager the process turns up in the process bar and then it just disappears… Help please!

Are you sure you have the right version of Java installed?
Try restarting your computer.
What windows version do you have?