photos in my photo stream do not show up on my windows computer

Hello All,

I have an iPhone, iPad, Apple TV, and a Windows laptop. The photos in my Photo Stream are the same on all of the iOS devices but not on my laptop. I have made a Shared Photo Stream to try an upload pictures from my phone to my laptop and still cannot see that. The strange thing is that one or two of the recent photos taken on the same days as the ones in my iOS photo stream are on my laptop photo stream, but not all of them. So it is not a connection or setup problem. Any help?