What is the best way to sync my Windows laptop with my iPhone 6? I have been syncing directly to my laptop and the pictures are taking up a lot if hard drive space. I want to still be able to sync everything without taking up valuable hard drive space

Sync your phone to icloud. your pictures will be there and you can access them anywhere you have Internet.

I Assume that you mean that you don't want the photos taking up a lot of space on the phone, but the phone doesn't have a hard drive. If you are actually talking about the space on the computer, copy the photos to an external drive and then delete them from the computer.

I think that your question could use a little clarification.

I Am assuming here again that you re using either the iCloud Photo library or Photo Stream, because you can't sync photos to your PC using iTunes.

If you are using iCloud Photo Library, you can not delete the photos from your PC without deleting them everywhere. iCloud Photo library keeps your photos in sync across devices and while it provides a form of storage, it is not true in the cloud storage where you can delete photos from a device and store the photos in the cloud. Bottom line, if you use iCloud Photo Library, you have to turn it off on the computer or the photos will sync to the device.

iCloud Photo Library FAQ - Apple Support

Get help with your iCloud Photo Library - Apple Support

IF you are using Photo Stream you must have the photos set to automatically download to the PC.

My Photo Stream FAQ - Apple Support

No matter what you decide, you might want to backup your photos to an external drive if you have one.