Author Topic: Unable to install Avast free  (Read 805 times)

0 Members and 1 Guest are viewing this topic.

Offline dickby

  • Newbie
  • *
  • Posts: 3
Unable to install Avast free
« on: December 10, 2017, 11:45:14 PM »
Installer keeps telling me it's detecting Sophos, which I had already removed with the Sophos uninstaller tool. Also removed all folders and whatever references I could find. Not sure what to do next. Any ideas?

(Accidentally posted this in another forum, but can't see where to delete it.)

Offline lukas.hasik

  • Avast team
  • Advanced Poster
  • *
  • Posts: 774
  • Product manager of Mac AV and Cleanup
Re: Unable to install Avast free
« Reply #1 on: December 11, 2017, 05:27:09 PM »
we are trying to prevent a incompatibility with other Av's kexts. Would you mind to run "kextstat | grep sophos" in terminal?

Lukas.
Quality is also a feature.

Offline dickby

  • Newbie
  • *
  • Posts: 3
Re: Unable to install Avast free
« Reply #2 on: December 12, 2017, 03:15:32 AM »
This is what I get:

  151    0 0xffffff7f80a57000 0x7000     0x7000     com.sophos.nke.swi (9.6.51) B9C6AF49-49A7-3666-97EE-FFA2E2E387FD <4 1>
  256    0 0xffffff7f83304000 0x8000     0x8000     com.sophos.kext.oas (9.6.53) E7883FE6-B498-37ED-BDBB-9BC0EC59DCDE <5 4 1>

Offline lukas.hasik

  • Avast team
  • Advanced Poster
  • *
  • Posts: 774
  • Product manager of Mac AV and Cleanup
Re: Unable to install Avast free
« Reply #3 on: December 12, 2017, 02:51:41 PM »
Bingo! The sophos kexts are still in place. Have you tried to turn it(Mac) off and on again? Please, restart. It may solve the issue.
After restart try the "kextstat | grep sophos" again. If there are similar results as in your previous post then try to unload sophos kext manually with
  • sudo kextunload -b com.sophos.nke.swi
  • sudo kextunload -b com.sophos.kext.oas
Quality is also a feature.

Offline dickby

  • Newbie
  • *
  • Posts: 3
Re: Unable to install Avast free
« Reply #4 on: December 13, 2017, 02:57:41 AM »
This worked -- thanks so much!

Offline lukas.hasik

  • Avast team
  • Advanced Poster
  • *
  • Posts: 774
  • Product manager of Mac AV and Cleanup
Re: Unable to install Avast free
« Reply #5 on: December 13, 2017, 04:37:20 PM »
This worked -- thanks so much!

I'm just curious - what worked? Restart or did you have to use kextunload? If the second option then the Sophos guys may appreciate a bug report about their uninstaller ;)
Quality is also a feature.