How do you kill all current connections to a SQL Server database

-- set your current connection to use master otherwise you might get an error
USE master
GO
ALTER DATABASE YourDatabase SET SINGLE_USER WITH ROLLBACK IMMEDIATE 
GO
ALTER DATABASE YourDatabase SET MULTI_USER
GO

Unable to Log In --Cookies Are Blocked Due To Unexpected Output

Just make sure wp-config.php file is in utf-8 encoding; if not save file in utf-8 encoding

To save file in utf-8 encoding use notepad, notepad++ or equivalent editor then do a save as to save file in proper encoding