While there may be other issues such as antivirus suite interference a thing I try is to go to ninite.com and check off itunes there and run the installer it provides. Why ninite.com? Read
https://www.howtogeek.com/201354/ninite-is-the-only-safe-place-to-get-windows-freeware/
Why not use Apple.com? We are trying an alternative quick fix before we go to the Apple Itunes Forums at https://discussions.apple.com/community/itunes/itunes_for_windows
Has anyone had this problem? All was working well until the latest Itunes update about a week ago. Now, "nada"!

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