MSFT ha liberado nuevas actualizaciones del cliente Lync 2013, aquí tenéis los problemas que se corrigen:

• KB 2910927 December 9, 2014 update for Lync 2013
  (http://support2.microsoft.com/kb/2910927)
• KB 2899507 November 11, 2014 update for Lync 2013
  (http://support2.microsoft.com/kb/2899507)
• KB 2889929 October 2014 update for Lync 2013
  (http://support2.microsoft.com/kb/2889929)
• KB 2889860 September 2014 update for Lync 2013
  (http://support2.microsoft.com/kb/2889860)
• KB 2881070 August 2014 update for Lync 2013
  (http://support2.microsoft.com/kb/2881070)
• KB 2881013 MS14-036: Description of the security update for Microsoft Lync 2013: June 10, 2014
  (http://support2.microsoft.com/kb/2881013 )
• KB 2880980 Update 2880980 for Lync 2013: May 2014
  (http://support2.microsoft.com/kb/2880980)
• KB 2880474 Description of the Lync 2013 update: April 2014
  (http://support2.microsoft.com/kb/2880474)
• KB 2863908 Description of the Lync 2013 update 2863908: March, 2014
  (http://support2.microsoft.com/kb/2863908)
• KB 2817430 Description of Microsoft Office 2013 Service Pack 1 (SP1)
  (http://support2.microsoft.com/kb/2817430)
• KB 2825630 Description of the Lync 2013 update 15.0.4551.1005: November 7, 2013
  (http://support2.microsoft.com/kb/2825630)
• KB 2817465 MS13-054: Description of the security update for Lync 2013: July 9, 2013
  (http://support2.microsoft.com/kb/2817465)
• KB 2768004 Description of the Lync 2013 update 15.0.4481.1004: May 2013
  (http://support2.microsoft.com/kb/2768004)
• 2760556 Description of the Lync 2013 update 15.0.4481.1000: March 2013
  (http://support2.microsoft.com/kb/2760556)
• KB 2760512 Description of the Lync 2013 update: February 2013