Windows 10 will be supported, but probably not until; v14.5 or after. Symantec typically does not support the NEWEST OS right away, but will take a release or two to get to it. This is due to testing the agent on the first stable version.
Also as an FYI windows 2012 R2 is supported... look at the release notes for version 12.5.1 or 2..
Please marked solved if this anserws your question.