This section is only applicable to Version 14 SP1 and earlier.
To perform an elevated installation, that is to install applications or patches using Windows Installer on behalf of a user who is not a member of the Administrators group, the installation must be started from a privileged command prompt.
If privileges are required to install an application, subsequent Windows Installer reinstallations, repairs or uninstalls of the application must also use elevated privileges.
For more information on UAC (User Access Control) refer to the relevant Microsoft documentation.
To access a command prompt with administrator rights, select Run as Administrator option from the Command Prompt menu.
From the Command Prompt window execute the msiexec.exe command-line with the required parameters. For install, re-install and repair use the /i option. For uninstall use the /x option. If Programs & Features is used to uninstall then some directories and files will not be removed. These may be removed manually (this will require elevation). All other changes to the system, for example to the registry, will still be backed out.
If the Windows Installer is executed under UAC but is not indicated as an Administrative install, the install will run as a Limited installation preventing an All Users install.