I get emails that I have TV shows that are ready to download. I click the link in the email and I get taken to the iTunes download page to download iTunes. This is on a Win 10 box, the issue doesn't happen with my MacBook. I also have a shopping website, for my credit card reward points, that does the same thing: click the link to buy stuff from iTunes and I get taken to Apple's download page to download iTunes. It seems its not seeing that I have iTunes installed. iTunes is my default music player. I am not able to make it the default video player.