Reply To: How to change authentication mode in SQL Server 2008? Stephen West ~ Modified: September 24th, 2015 ~ ~ 1 Minute Reading Home › Forums › How to change authentication mode in SQL Server 2008? › Reply To: How to change authentication mode in SQL Server 2008? September 24, 2015 at 12:01 pm #727 Score: 0 Stephen WestModerator Karma: 4 pts Try the following steps: 1. Open SQL Server Management Studio and connect to your database server. 2. Right Click on Database Server and click Properties. 3. Set the Server Authentication to SQL Server and Windows Authentication Mode. Search