How To Change the Default Backup Path in SQL Server

When installing SQL Server you also set up the default backup folder, but how can this folder be changed later?
In SQL Server 2005 and before there is no built-in mechanism.
In SQL Server 2005 or before, this information is saved in the registry. So you need to change the registry. It will be saved in
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQLServer
In the above registry, the BackupDirectory string value is the place where the default backup directory is stored.

After changing this, you do not need to restart the SQL Server.
In SQL Server 2008 and onwards, there is an option to change this.
In SQL Server Management Studio, right click the server and select Facets,

Under the Server Facet, you can change BackupDirectory.