Powershell exe problem Windows 7 x64

This error can occur if you have anti-virus software installed and the anti-virus software is incorrectly reporting that one of the files installed contains a virus.
Unfortunately anti-virus software often gives "false positives", i.e. wrongly concludes a file contains a virus.


Here's what I inadvertently tried and it worked: I say inadvertently because I have no idea how I stumbled upon this dialog box as I didn't even know it existed.

Control Panel
Windows Defender Firewall
Allowed Apps
Randomly highlighted an app
Clicked change settings (upper right), at which point Allow another app becomes available at bottom right
Clicked Allow another app at bottom right
Browsed to downloads folder where EZVid was saved
Error message is gone!