VMware provides service packs to update the vCenter Server 5.x software and third-party components.

vCenter Server service pack releases can include updates to vCenter Server, Inventory Service, vCenter Single Sign On, and Profile-Driven Storage Service.

vCenter Server 5.x service packs will be available from the VMware Web site. The service pack update process updates files and registry settings required by vCenter Server, and restart Windows services that are stopped during the update.

You cannot use Simple Install to upgrade from vCenter Server 5.5 to a later 5.5.x version, for example, from version 5.5.0 to 5.5 Update 1. If you attempt to do so, the installer displays the message vCenter Package components already installed. Please install any remaining components by clicking on the respective links one the left. This means, that some of the vCenter Server components of the 5.5.x version might be already installed and you must upgrade all of the other components by using the individual installers. To upgrade from vCenter Server 5.5 to a later 5.5.x version, you must use the individual vCenter Single Sign-On, vSphere Web Client, vCenter Inventory Service, and vCenter Server installers. See Use Custom Install to Upgrade Version 5.0.x and Earlier vCenter Server and Required Components.

Note:

vCenter Server 5.x service packs will be available from the VMware Web site. The service pack update process updates files and registry settings required by vCenter Server, and restart Windows services that are stopped during the update.

Installing an update on Windows Server 2008 or later with User Account Control (UAC) turned on requires Administrator privileges. The logged in user must be Administrator, or an Administrators group member whose privileges are elevated to the Administrator level. See Elevate Administrators Group Privileges to Administrator Level in Windows Server 2008.