问题
Yesterday ended trial period of SQL Server 2014 installed on my PC. I decided to use express edition and uninstalled SQL Server 2014 and installed Express edition.
But when I open SQL Server Management Studio, there is still an error:
evaluation period has expired
Afterwards I installed developer edition of SQL Server 2014 which is free now as I understood. The installation was successful but I still have the same error when I open SQL Server Management Studio.
How can I use Express or Developer edition version of SQL Server?
Thank you
回答1:
You can install the SSMS preview releases. They have the same features as previous versions with more bug fixes and better compatibility with Azure SQL databases: https://msdn.microsoft.com/en-us/library/mt238290.aspx
回答2:
SQL Server is one of the worst application when we talking about uninstall) You should try to uninstall it again but this time do it much more scrupulously.
- stop all instances and services of SQL Server (or skip this point)
- simple uninstall SQL Server
- install something like cCleaner and remove all other SQL Server files such as registry files and temp files
- install new version only after full uninstall of previous version (+restart comp);
Good luck.
回答3:
If someone stumbles across this thread, change the Edition under Free Edition to Developer and apply the changes.
You will find this feature at SQL Server Installation Center -> Maintenance -> Edition Upgrade
来源：https://stackoverflow.com/questions/37399867/sql-server-evaluation-period-has-expired-error