>I've moved several databases on the test server from previous version to 2014. No problems.
>
>Currently planning to move production databases.
>
>
>>---------------------------
>>Are you running SSMS as administrator?
>>
>>BTW, I installed SQL 2014 on Friday and restored several DBs from Backup fine.

I didn't remove SQL Server 2012 installation. I currently have SQL Server 2012 Developer and SQL 2014 Standard installed.