In reply to Andrew Gadsby.

A further update to the Microsoft kb article above. Even with the above hotfix installed there is still a slight window of opportunity for the DELETE/CREATE sequence described in the kb article to fail. This can be addressed by setting: DirectoryCacheLifetime to 0 under
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Lanmanworkstation\Parameters

See https://technet.microsoft.com/en-us/library/ff686200%28v=ws.10%29.aspx for more details. This may have performance implications but it should prevent the problem occurring.