Installing or upgrading 10 builds or versions I think still works best when you use an ISO, or the files included in the ISO. MS just released what amounts to a new beta, with features closer to the anniversary release than you'll get from the regular ISO download using the MS tool in 7/8. Whether you want to use what's basically a beta version is up to you. Note that to download you will have to sign up to their Insider program, which basically means giving them an email address & setting a password.
microsoft[.]com/en-us/software-download/windowsinsiderpreviewadvanced