You can drill down to this report from Count of SQL Server Editions. The List of Computers by SQL Server Edition report provides you with the computer name, SQL Server version number, SQL Server instance name, and the installation directory for a specific SQL Server edition. Your inventory assessment will be complete when you know exactly which computers have SQL Server installed on them.
For added convenience, two additional prompt options are available within their respective areas. You can see a complete list of all computers by using < All Versions > and/or < All Editions >. You may find this prompt useful when you want to see all SQL Server instances (for example SQL Server 2008) regardless of edition. Similarly, you can see all computers with SQL Server Express installed regardless of version.
From this report, you can drill through to SQL Server Details.