Open Avast and choose Uninstall
Launch Avast, use the Avast menu in the macOS menu bar, and choose Uninstall Avast. Approve the administrator request from the identified Avast uninstaller.
If the app was already deleted
Download the current official installer, restore the product, and run its own uninstaller. This is safer than manually deleting launch daemons and security components whose role is unclear.
Restart and check background items
After uninstalling, restart the Mac and check Login Items, Allow in the Background, and running processes for clearly named Avast components.
Do not force-delete system extensions
Security extensions and privileged services are controlled by macOS. If the official uninstaller cannot remove one, use Avast support or the product's documented removal path rather than disabling system protection.
Use cleanup as verification
CleanWarden can inventory remaining Avast-named support files and preferences, but privileged security components should remain locked unless their ownership and removal path are certain.
Frequently Asked Questions
Why can't I drag Avast to Trash?Its antivirus services and security components can still be running, so Avast expects its own uninstaller.
Should I disable SIP to remove Avast?No. Use the signed vendor uninstaller and contact Avast support if a protected component remains.
Can CleanWarden replace the Avast uninstaller?No. It can verify ordinary leftovers, while Avast should unregister its own security components.