How to sync only new pictures onto my windows 8 computer from my iphone?

I recently bought a windows 8 computer and I've noticed that when i sync my photos from my iphone to the computer, it sync all the pictures, even the one i have already synced. My other computer only synced the new ones. How can I make my windows 8 only sync the new pictures?

Basically you're asking too much of windows. It only syncs all info.

Try google it also