Windows Live Mail and Windows 10

I have bought new laptop with Windows 10 operating system.  I do not like the email part so I downloaded Windows Live Essentials which seemed to be the latest which was 2012as I always used Windows Live Mail for emailing.  It seems to have downloaded ok, and have added my email accounts ok, but my mail email account seems to be bringing in hundreds of older emails that were already downloaded to my old computer.  Is that normal?  Also the ones with attachments, i.e. photos - they are blocked as potentially hazardous and I can't open them.   There was a "get help" on the bottom of the notification so I clicked on it and it gave me instructions how to sort this, but the page was not for windows 10, but for the earlier version so I am lost as to how to sort this.  I keep reading that Windows Live Mail will keep working with Windows 10.