i updated to windows 10 and cant downlload itunes.

this is really frustrating. I was asked if I wanted to delete all apps during install , so I did. I didn't think word was an app. it is a program, but it deleted it and all my apps including iTunes, so now I can't download iTunes. says I need apple application support. I click on that in the deleted apps folder and get a generic apple site that doesn't offer the doc, app, whatever it is.