Steps to change the name of a VM running SQL and SSRS

1. Open File Explorer

2. Right click This PC and choose Properties, then Advanced system Settings

3. On the Computer Name tab click change

4. Change the name and restart now

5. Launch SSMS and login (You may need to use the new server name to log in) and run the following:

sp_dropserver 'old_physical_server_name\GP2015'
GO

sp_addserver 'new_name\GP2015', local
GO

6. Restart SQL Server

7. Close SSMS

8. Open SSRS configuration

9. Choose Database then change database and follow the wizard to locate the ReportServer database.

10  Restart SSRS