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Cannot install MAC antivirus software on MacOS High Sierra Desktop

  • Macintosh
  • Antivirus
  • Software
Last response: in Laptop Tech Support
February 15, 2018 10:53:28 AM

Have tried to install two free versions of MAC antivirus software. The installation completes successfully, but nothing happens. Using the Finder, I found the app but when I double click on it, nothing happens.

More about : install mac antivirus software macos high sierra desktop

a b è Antivirus
February 15, 2018 11:29:58 AM

What is this antivirus software?

Best solution

February 15, 2018 2:49:17 PM

rgd1101 said:
What is this antivirus software?

I tried AVG and then Avast. I finally deleted both, emptied the trash and rebooted my desktop. I downloaded Avast again and re-installed and it worked. I did get a message something about a "file extension". I said OK (have no idea what that was about) and then went in to Preferences and "allowed" the Avast software to do who knows what. In any case, it's running now. Thanks for taking the time to respond to my inquiry!

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