Large SharePoint library missing
Question / Problem
When scaning my SharePoint server, a large library or folder is missing. Why?
Answer / Solution
By default, Windows does not enumerate folders via WebDAV that contain more than 20000 (20k) elements. Microsoft created a knowledge base entry that covers this topic: https://support.microsoft.com/en-gb/help/912152/
The workaround in short is:
Change the value HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters\FileAttributesLimitInBytes to 1000000000 (thatÂ’s nine zeros) and restart your computer.