Can't import iPhone pictures to computer?

Hi. I'm getting a new iPhone soon so I was going to import all my pictures from my iPhone to my computer but for some reason I just can't. I have the iPhone 5 7.1 version and a Windows 8 Dell Inspiron. When I plug my iPhone into my computer nothing comes up. When I used to plug it in something would come up and I would have the option to import pictures. I even checked My Computer and I still couldn't find the device. I've tried everything. Can someone please help me?

Just open windows explorer and cut/paste them over all at once.

Do you have a new pc if so you need to install itunes for all apple products this is why i always suggest an android phone with stock android as it just works no messing thanks ian.