Presencia desconocida/Presence unknown Lync 2013/Skype for bussines

PROBLEM:
contacts at Lync/Skype clients shows "presence unknown"


SOLUTION:

delete %UserProfile%\AppData\Local\Microsoft\Office\15.0\Lync in the computer client.

(Create a GPO to apply all Organization computers)

references: http://blog.insidelync.com/2013/09/lync-2013-presence-issues/

Outlook Web App didn’t initialize. If the problem continues, please contact your helpdesk.

PROBLEM:
Exception type:Microsoft.Exchange.Clients.Owa.Core.OwaThemeManagerInitializationException
Exception message: Couldn’t find a base theme (folder name=base)
Call stack
Microsoft.Exchange.Clients.Owa.Core.ThemeManager.LoadThemeFiles()
Microsoft.Exchange.Clients.Owa.Core.OwaApplicationBase.ExecuteApplicationStart(Objectsender, EventArgs e)

SOLUTION
run UPDATECAS.PS1 from ‘C:\Program Files\Microsoft\Exchange Server\V14\Bin 
with Exchange Management Shell

Recuperar archivos no guardados de Word/Recover unsaved Word files

Si realizaste archivos de Word y no los guardaste puedes encontrarlos en esta ruta (Aplica para cualquier documento Office)

%APPDATA%\Microsoft\Word
%LOCALAPPDATA%\Microsoft\Office\UnsavedFiles

Abrir el archivo .asd