SharePoint 2013 – Client asking fro user name and password

Regards’ of client  : Windows 8.1 + IE 12  or Windows 7 + IE 8.

I have  Enabled Kerberos authentication and basic authentication. I use only HTTPS.

If i add SharePoint site in to local intranet zone, i logon without prompting user name and password.

If i logon wit computer that is not domain joined i get prompt for user name and password. I did put SharePoint site to local intranet zone and i did put remember user name and password.

There is no way, that  non  domain joint computer can logon to SharePoint site without prompt in picture.

Would Form Based authentication solved my problem ?