you get a
“Installer integrity check has failed. Common cause include incomplete download and damaged media.
Contact the installer’s author to obtain a new copy. “
1) Your installer is really corrupted and need to be downloaded again
2) or simply your antivirus / firewall (mostly Norton and AVAST) prevent the full installer to be downloaded correctly,
deactivate the antivirus temporarily and download and install it again.
Posted in: 5 Installation