The MSI installer gave a 1618 return code, which according to the MSI documentation is, "Another installation is already in progress. Complete that installation before proceeding with this install."
It sounds like another MSI installation may be in progress on your machine. I suggest restarting your machine and try again.
If still no luck (after trying again after a restart), contact tech support. They'll want your IT_2016-08-23-10.06.17.log and install_eguide_7.1_wx6_en_2016-08-23-10.12.54.log (from C:\Program Files\SASHome\InstallMisc\InstallLogs\).