SQL Server re-installation error - An instance with the same name is already installed on this computer. To proceed with SQL Server Setup, provide a unique instance name.
![SQL SERVER - Event ID 26 - Your SQL Server Installation is Either Corrupt or has Been Tampered With (Error Getting Instance Name) - SQL Authority with Pinal Dave SQL SERVER - Event ID 26 - Your SQL Server Installation is Either Corrupt or has Been Tampered With (Error Getting Instance Name) - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/wp-content/uploads/2017/02/tamper-01.jpg)
SQL SERVER - Event ID 26 - Your SQL Server Installation is Either Corrupt or has Been Tampered With (Error Getting Instance Name) - SQL Authority with Pinal Dave
![A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL](https://i0.wp.com/jbswiki.com/wp-content/uploads/2020/03/blog90_1.jpg?fit=628%2C521&ssl=1)
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL
![Run multiple instances of SQL Server on one Amazon EC2 instance | AWS Cloud Operations & Migrations Blog Run multiple instances of SQL Server on one Amazon EC2 instance | AWS Cloud Operations & Migrations Blog](https://d2908q01vomqb2.cloudfront.net/972a67c48192728a34979d9a35164c1295401b71/2021/09/03/fig2y.png)