Why won't my iphone 4 connect by usb on my laptop?

I have a toshiba satellite laptop on windows 8, I've tried to connect my iphone up to my laptop so that I can connect it to iTunes but every time I try to connect it up it connects for a second gets to the charging screen for a second and disconnects again and does that over and over again. So it basically just will not connect properly to my laptop at all. Does anyone know what this could be? Or know how to fix this problem?

Now you know why I don't rely on ridiculous IPHONE, When I can can just connect my Samsung Galaxy Note 4 effortlessly without 3rd party software(ITUNES)