Will connecting my iPhone to new laptop delete everything?

I just got a new laptop and want to connect my iPhone with it instead of my brothers one which I had been using. All the music on my iPhone is pretty old anyway so I wouldn't mind if that got deleted and I had to start again with music, but will things like contacts and photos and everything else be deleted too?

No. It is all stored it the cloud anyway.

Movies and music and if you choose to import photos they will be deleted also I did this with my iPad when I got my sony vaio and the music I imported from the last laptop was gone. This information is for iTunes not windows file explorer. And only music you imported will be deleted from your library

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