How is the SQL Server Folder "C:\Program Files\Microsoft SQL Server\" organized?

In C:\Program Files\Microsoft SQL Server\, I'm seeing many sub folders such as

What are these sub directories for? Are they for each SQL Server instance? Can we delete the folders?

Solution 1:

Those folders are for different SQL Server components.

The MSAS folder is for SQL Server Analysis Services

The MSRS folder is for SQL Server Reporting Services

The MSSQL folder is for the SQL Server Database Service (database engine)

I don't believe the folders are created unless you've installed those compnents, so I'd recommend not deleting them.