To install a service pack, launch the Setup.exe file. If a Security Warning appears, click Run. You are then prompted to choose the language for the Installer, and the Install Wizard appears. During installation, you will proceed through these screens in the Install Wizard.
Welcome: The Welcome screen identifies the name of the service pack. You can click Cancel if you decide that you do not want to install the service pack.
Application Selection: Choose Knowledge Center.
Choose Destination Location: Displays the default location where the application is currently installed. The content root is typically in a different location than the server; select the location where the content root is installed.
Ready to Install: The Installation Wizard is ready to update the application. Click Back to review or modify any settings.
Setup Status: This screen appears while the files are being copied.
Installshield Wizard Complete: During the update a file might be in use by the operating system on the computer; this will require a reboot to complete the installation. Also, make sure to run Windows update to get the latest patches from Microsoft.