This issue occurs when you send or receive a file which is larger than two Gigabytes (GB) in an instant message (IM) conversation in Microsoft Lync 2013 (Microsoft Skype for Business). When this issue occurs, the size is always displayed as 17179869183.5 GB in the file transfer tile.
Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.