Calling your local PC expert is really recommended. Since you do not know what you are doing with your awesome device.
Many people got this problems everyday. And most of them did not know what to do to fix it. Searching on the net for solution lead them to bigger problem since they are did not know about that tech talk.
That is why the repair business exist in every area here in Australia.
Some example of computer repairs company near you, they are Brontobyte IT Support and Byte Computers who serve their local costumers very well.
For Brontobyte you are also can find them in many channel like you.tube, google+, and facebook fanpage.
ByteComputers is there too, here is their facebook fanpage.
In other area, or near you. You can find other small business who run this kind of services.
They are professional, know what they are doing and of course they can help you to fix any problem that occur on your desktop computer or laptop. No matter that caused by software or hardware failure.