Symptoms
When you install Microsoft SQL Server cumulative updates (CUs), the installation may experience the IndexOutOfRangeException exception when it runs the Check Files In Use process.
Resolution
This problem is fixed in the following cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of 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 terminology that Microsoft uses to describe software updates.