How do I delete the photo albums on my iPhone 4? These photos, albums and videos are taking up space and besides this, I WANT THEM OUT! I have iTunes on my Windows

How do I delete the photo albums on my iPhone 4? These photos, albums and videos are taking up space and besides this, I WANT THEM OUT! I have iTunes on my Windows 7

I can connect the iphone to the computer. i can open iTunes,

I don't know how to delete the photos and the albums that streamed in and otherwise came in and or doubled into albums that i did not create. Videos too.

i did turn off streaming.

would someone please tell me how....

I've heard that it can be done and then something about syncing...no idea how to sync either....only that when I hook up the cord to the computer, my iPhone 4 dings...

i need basic step by step...and alot of patience! thanks

I have iO7 something, which I'm really not fond of either....any way after the photo/album deleting...I'd like to find out how to get rid of this update 😟