If you have previously excluded Office apps from your install you may find that re-running without them excluded does not install them.
It seems Office click-to-run keeps a record of the initial excluded apps in the registry.
Use regedit.exe to take a look in the following path for the 'O365<edition name>.ExcludedApps' key.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ClickToRun\Configuration
Remove any excluded apps and rerun the install.
