Cannot install Adobe AIR; "An error occurred while installing Adobe AIR. Installation may not be allowed by your adminstrator"

"An error has occurred while installing Adobe AIR. Installation may not be allowed by your administrator" I have tried disabling all antivirus and turning off firewall. I have tried downloading Fix IT. I have tried "Run as Administrator" Nothing has worked. Please help! I need this to run software for a class and am running out of time!

Juliet