Download Security Update For Exchange Server 2013 CU20 (KB4340731) from Official Microsoft Download Center

A new Surface Pro 7 displaying mountains.

Surface Pro 7

Ultra-light and versatile

Person using Power BI Desktop

Power BI

Transform data into actionable insights with dashboards and reports

Security Update For Exchange Server 2013 CU20 (KB4340731)

Important! Selecting a language below will dynamically change the complete page content to that language.

Select Language:
Security Update For Exchange Server 2013 CU20 (KB4340731)