Installs the Security Only update on Windows 7 and Server 2008 R2.
Does not apply security updates from previous months.
A reboot is required but will not be initiated by this deployment, however depending on your environment Windows Update may reboot the computer.
In addition to installing the latest security-only update, this package will install the latest prerequisite servicing stack update for Windows 7 and Server 2008 R2. Without this update, the security-only update may not install. After installing the SSU, a reboot may be required before the security-only update can be installed.
Please see the link below for more details or known issues in this update.