Avast Business said to be already installed but can't find it or start it...

[Gregory133]

Installed my MacOS Big Sur and can't install Avast Business AV Online. I start the install it says that Avast is already installed but I can't find it or start it.

[Dean117]

I too seem to be running into the same issue. I created a .pkg to deploy Avast Business via Mosyle Business. It installs but does not run. When trying to click the app, it does nothing. Is there a Post-Install Script that needs to be entered?

[Handmade]

I too seem to be running into the same issue. I created a .pkg to deploy Avast Business via Mosyle Business. It installs but does not run. When trying to click the app, it does nothing. Is there a Post-Install Script that needs to be entered?

Avast Business Anti-Virus works well on our company's Macs with OS 10.x but cannot be installed on Macs with 11.3 and above.  Even new machines get the same error message saying that Avast is already installed.  It seems to us that Avast product development is lagging behind Apple's OS upgrades.  Guess we'll have to go with a competing brand of anti-virus software ....

[Infratech Solutions]

Avast Business Antivirus Managed is working well with Mac OS 11.3 (see picture).

What installer are you using: https://www.avast.com/download-thank-you.php?product=BUM-DOWNLOAD&locale=en-ww

[Andrew798]

Avast Business does not work with BigSur.

The installer I'm using is simply login into business.avast.com and download the software.

Pretty useless software as all our Macbook's are being upgraded to BigSur.

Thinking to short the shares.

Andy.