Incorrect search results when you search for certain files with German naming criteria in Windows Server 2012 R2

Applies to: Windows Server 2012 R2 DatacenterWindows Server 2012 R2 StandardWindows Server 2012 R2 Essentials

This article describes an issue that occurs on a Windows Server 2012 R2-based Remote Desktop Session Host (RD Session Host) server. You can fix this issue by using the update rollup in this article. 

Symptoms


When you search for certain German filenames in File Explorer, the results are hidden when the input reaches a point in wordbreaker. Therefore, even if you have all full partial matching conditions satisfied, the correct information isn't shown.

Cause


This issue occurs because of a bug in the internal matching logic implemented by German wordbreaker.

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.