Problems with installing Avast One with MacOS 15 Sequoia

If, like me, you have run into problems installing Avast One on

MacOS 15 Sequoia where you get stuck on the Avast setup screen to allow

permissions, then the following might helpl.


Go to System Settings. Scroll down to 'Privacy and Security' and

select this. On the right hand side go to 'Full Disk Access' option and

click into that. You should see an entry for 'Avast One'. Turn the

toggle switch to 'ON'.


Then head to the 'General' item in System Settings and on the right

hand side scroll down to 'Login Items and Extensions' (or you can search

for this in Finder). Under the 'Allow in the background' option, make

sure the toggle switch under 'Avast One' is set to 'ON'.


Then scroll down to the Extensions section, and click on the 'i'

next to 'Network Extensions'. This should open a new window where you

should see an entry for 'Avast One'. Turn the toggle switch to 'ON' and

then head back to the Avast One set up window.


This should have done the trick and you should see green ticks

allowing you to progress to the next screens in the Avast setup window.


Hope this helps and please add anything else that would be helpful.


Good luck!

Posted on Sep 19, 2024 5:29 AM

Reply
4 replies

Sep 19, 2024 5:55 AM in response to PSX123

Sequoia did you a favor if it did not let you install Avast. If you managed to get some of the files installed, then use the Avast uninstaller and hope that it will itself. You are in for a world of fake notifications and having your computer slowed down while Avast consumes its resources without providing any additional protection to your already secure OS. Don't just take my word for it, here is what others on this support site have experienced:

Search - Apple Community

Sep 19, 2024 7:16 AM in response to PSX123

PSX123 wrote:

<snip>
Hope this helps and please add anything else that would be helpful.

Good luck!

Do not install third party apps that claim to protect, clean, manage, boost performance, etc. Such apps use system resources while providing no benefit, and they may cause problems. Avast is an example of one such app.

See this user tip: Effective defenses against malware and ot… - Apple Community


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Problems with installing Avast One with MacOS 15 Sequoia

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