This publisher could not be verified. Are you sure you want to run this software?
This happens when you are trying to run a program which is unfamiliar to your system.the program we were running was located on a network and the computer treated it like a program over the internet.
If you do not have the option to uncheck the ‘Always ask before opening this file’ option, there is another way:
You can turn off all of these messages”
Open Internet Explorer
Tools -> Internet options
Click on Security tab
Click on custom level button
Under “Launching applications and unsafe files” click enable.