Olá Mikaelly,
Essa mensagem é comum em caso de falha no aplicativo. Pode ser abrangente e ser um problema no Windows ou apenas no Aplicativo Word.
Tente reinstalar o Word/pacote Office.
Thank you,
F. Schubert
System Administrator
MCP | Microsoft Certified Professional
MCTS 70-640 | Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration
MCTS 70-642 | Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration
MCTS 70-643 | Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuring
MCTS 70-680 | Microsoft Certified Technology Specialist: Windows 7, Configuration