Hey, I discovered something else. Install on Windows 10 works fine - no need to "run as administrator", just double-click on the .msi in File Explorer - so long as you change the installation location to something outside of C:\Program Files. I've tested installing into your user's home directory, like C:\Users\<username>\couchbase , as well as to a top-level directory like C:\couchbase . So that is probably a better thing to put into the release note. The whole cmd.exe-Run as Adminsitrator-call workaround is only necessary if you must install under C:\Program Files. All of this is also true on Windows Server if you are logged in to a user account other than "Administrator".
It is still true - in all cases, for all versions of Couchbase Server, on Windows 10 or Windows Server, no matter what directory you choose to install into - that you need to be signed in as an account with Administrator access to install Server. Not necessarily the account with the name "Adminstrator", but "an Administrator account". If you are signed in as a non-Administrator account, when you launch the .msi, you will be prompted to provide Administrator credentials.