Database diagram support objects cannot be installed SQL Server

TITLE: Microsoft SQL Server Management Studio Express
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Database diagram support objects cannot be installed because this database does not have a valid owner.  
To continue, first use the Files page of the Database Properties dialog box or the ALTER AUTHORIZATION statement to set the database owner to a valid login, then add the database diagram support objects.

Fix error Database diagram support objects cannot be installed sql server 2005,2008,2012