the 2 important updates are:

"Security Update for Windows 7 for x64-based Systems (KB2847927)"

"Security Update for Windows 7 for x64-based Systems (KB2884256)

I try to start service---"Security Center" (run "Service.msc"), but failed,

and notic:"Windows could not start the Security Center service on Local Computer.

Erro 1086: The dependency service or group failed to start."

Could anyone help me with this security problem? 

P.S.

Microsoft Office Professional Plus 2013 encountered an error during setup

Hi,

Please have a look at the following link which discussed a similiar issue:

http://answers.microsoft.com/en-us/windows/forum/windows_vista-networking/windows-could-not-start-error-1068-the-dependency/7963d72a-5d73-44fe-8316-058c46235737

Since this forum is for general questions and feedback related to Microsoft Office, and this issue is more related to Windows Client, I'd recommend you post a new question in the following forum:

https://social.technet.microsoft.com/Forums/windows/en-US/home?category=w7itpro%2Cw8itpro%2Cwindowsvistaitpro%2Cwindowsxpitpro%2Cwindowsintune

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.

Steve Fan
TechNet Community Support