I just downloaded Avast to my Windows 8.1 machine. It says, “This app can’t run on your pc.” Huh? I tried it twice - that’s why the multiple files.
If you’re trying to download Avast from cnet here the direct link from Avast that you can download the latest AV
Download locations
Free Version:- http://files.avast.com/iavs9x/avast_free_antivirus_setup.exe
Pro Version:- http://files.avast.com/iavs9x/avast_pro_antivirus_setup.exe
Internet Security Version:- http://files.avast.com/iavs9x/avast_internet_security_setup.exe
Premier Version:- http://files.avast.com/iavs9x/avast_premier_antivirus_setup.exe