: If you already have Office 2013 installed, using the Microsoft Update service is the recommended way to receive SP1 and subsequent security fixes automatically. Alternative Safe Archival Links
: Available on Microsoft Support as KB2817430. : If you already have Office 2013 installed,
Microsoft reached the end of support for Office 2013 on . While they no longer provide active updates, you can still find official service pack installers on the Microsoft Download Center . : If you already have Office 2013 installed,
Instead, it is safer to use official or well-documented archival sources to obtain Microsoft Office 2013 Service Pack 1 (SP1) and its updates. Official Microsoft Resources : If you already have Office 2013 installed,