Symptoms
Assume that you have Microsoft SQL Server 2016 or 2017 installed. After you install SQL Server 2016 Service Pack 1 (SP1), when you try to modify the current installation by running the SP1 installation package again, you may notice that the Upgrade Status of the shared features displays "Incompletely installed" on the Feature Selection page in the Installation Wizard.
Similarly, assume that you have Microsoft SQL Server 2016 SP1 installed together with Microsoft SQL Server Management Studio (SSMS) 16.5. After you install Cumulative Update 5 (CU5) for SQL Server 2016 SP1, when you try to modify the current installation by running the CU5 installation package again, you may notice that the Upgrade Status of the shared features displays "Incompletely installed" on the Feature Selection page in the Installation Wizard.
Resolution
This issue is fixed in the following cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminologythat Microsoft uses to describe software updates.
