All of my emails will not upload onto my Outlook on my laptop what can I do?

When I access outlook through a web browser or through my iphone it shows all the new emails, but when I access outlook through the program on my laptop it does not show all the latest emails

You have to configure your outlook so that it will download the emails to your computer. You need to get the settings from your ISP because each ISP is different. Just call their tech spt number and tell them you need help setting up outlook on your computer and don't know the settings. It will take about 2 min for them to solve this.