Excessive Free Space in Database File

This warning indicates that there is excessive free space in the database file. If this isn't intentional, disk space could be recovered by shrinking the data file.

Suggested Action

Consider reducing the free space to leave 10% free if it's unlikely to be used.

How to Recover Free Space From SQL Server Data Files

USE [master]
DBCC SHRINKFILE(N'WhippetWorks', 128)

Further Reading

DBCC SHRINKFILE (Transact-SQL) | Microsoft Docs