I have checked my Windows Defender and have no quarantined threats. I do have all of the entire folder (e:\) excluded where I have P3D v3 installed. I do not have any add ons other than this one on any of my flight sims installed on this computer that have a problem like this one. I turn off Windows Defender when I downloaded the installer and installed the software. I have re-installed it more the 5 times already.
Added: I purchased Norton 360 and retried the install again. Same problem.
Adam Poincon