Author Topic: Unable to Install  (Read 3848 times)

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Offline ecb1000

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Unable to Install
« on: September 18, 2018, 08:06:54 PM »
I've just updates my MacBook Pro to High Sierra. Relatively painless, but on completion I found that Avast wasn't working, wouldn't update or scan. Only thing I could think of trying was to uninstall and then reinstall Avast. Uninstalling proved difficult but I finally got there. Carried out a thorough search and could find no Avast files remaining.

So, I downloaded the latest version of Avast and tried to install, but got a message telling me Avast was already installed and I needed to uninstall it first. Used the Uninstall tool that came with the download and tried again, and again, and again...... No joy, it's still there. Looked hard for any Avast files on the Mac but nothing I can find.

Any advice gratefully received.

Offline lukas.hasik

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  • Product manager of Mac AV and Cleanup
Re: Unable to Install
« Reply #1 on: September 19, 2018, 10:18:32 AM »
ecb1000, That looks like terrible experience! Would you mind to help us to solve it with a bit more details?
1) what did the Avast UI say when you'd found it wasn't working? Was there any message / error shown?
2) how did you Uninstall? A) from app menu > Uninstall Avast B) d'n'd of the Avast from Applications to Trash C) some other way?
3) lets check if there are any leftovers Avast AV installs - please open the Terminal and run following commands
- a) ls -la /Library/Application\ Support/Avast/
- b) ls -la /Applications/Avast.app/
- c) kextstat | grep avast
4) there should be some logs about Avast's install/uninstall process in the /tmp directory. Would you mind to send them to me - hasik (at) avast (dot) com
5) restart your Mac, it helps sometime. - but please check 4) first otherwise the /tmp will be cleaned on restart ;)
Quality is also a feature.

Offline richardh2001

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Re: Unable to Install
« Reply #2 on: September 29, 2018, 09:51:34 PM »
I am having the same problem too.  I ran my terminal and this is what came back:

Last login: Sat Sep 29 12:23:00 on console
Richards-Mac-mini:~ richard$ ls -la /Library/Application\ Support/Avast/
total 8
drwxr-xr-x   8 root  wheel  272 Sep 24 23:41 .
drwxr-xr-x  27 root  admin  918 Feb  9  2018 ..
drwxr-xr-x  17 root  wheel  578 Sep 24 23:41 config
-rw-r--r--   1 root  wheel    1 Sep 15  2017 display-version.tag
drwxr-xr-x  12 root  wheel  408 Sep 24 23:41 run
drwx------   8 root  wheel  272 Sep 24 23:36 submit-data
drwxr-xr-x   6 root  wheel  204 Sep 24 14:01 update-data
drwxr-xr-x   5 root  wheel  170 Sep 24 23:40 vps9
Richards-Mac-mini:~ richard$ ls -la /Applications/Avast.app/
ls: /Applications/Avast.app/: No such file or directory
Richards-Mac-mini:~ richard$ kextstat | grep avast
Richards-Mac-mini:~ richard$

Offline jakub.bednar

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Re: Unable to Install
« Reply #3 on: October 22, 2018, 05:14:06 PM »
Hello ecb100,

to manually uninstall Avast, you need to run following commands in Terminal

sudo rm -rf /Applications/Avast.app                     this will remove our UI part of the application
sudo rm -rf /Library/Applicaiton\ Support/Avast    this will remove our configuration files and other data files
sudo rm /Library/LaunchDaemons/com.avast.*     this will remove our system-wide registration files
sudo rm /Library/LaunchAgents/com.avast.*         this will remove our per-user registration files
rm ~/Library/Application\ Support/Avast               this will remove per-user configurations
reboot

Now the system should be clean from Avast and you should be able to install the latest version.

Hope it helps.

Best regards,

Jakub