Too many contacts in my list of contacts

I just purchased a new computer and an using Windows 7.  I am also using Window Live Mail to receive my emails.  In setting up Windows Live Mail I transferred my saved contacts file to the new computer.  Those transferred well but I also have all the contacts from my phone for some reason.  Why did these transfer?  How do I stop this from happening? How do I delete the phone contacts from Windows live mail.  When right clicking on the phone contacts the delete option is not high lighted.

Thanks,

John