Hi,
Go to IE Advanced, then Privacy and click Settings for the Pop-up Blocker.
Manually add the get.adobe.com to the list of allowed sites.
Also, concerning N360, one method is to right click the Norton icon on the taskbar and select to disable Anti-Virus Auto-Protect for let's say 10 minutes.
Then try to install FP, from the official adobe website.
It should work.
Re-enable the antivirus component and reboot.
Let us know if you need extra help.
Regards,