Delete a Solution
Applies to: 
SQL Server
Azure SQL Database
Azure SQL Managed Instance
Azure Synapse Analytics
Analytics Platform System (PDW)
Deleting a solution permanently erases files from physical storage as well as the file items in the solution.
Note
In contrast to projects and items, a solution can only be deleted permanently, not removed temporarily.
To delete a solution
In Solution Explorer, select the solution you want to delete.
On the File menu, click Close Solution.
In Microsoft Windows Explorer, locate and select the files associated with the solution you want to delete.
On the File menu, click Delete.
See Also
Solution Explorer
Create a New Solution
Create a Project
Remove or Delete an Item or Project