Hi Kent,
You can find full instructions here:
Note that these steps (in addition to complete removal of SQL server 2014 and its components) are of key importance
Link to Hamilton SW removal tool
If you encounter further issues after following the above process, it would be prudent to get you in touch with local support as troubleshooting installation issues remotely over the forum would become less efficient.
Let me know how it goes. Thanks.
-Nick