**1-802-557-0358 how to get rid of Avast antivirus?** Avast 24/7 Support Number +1-802-557-0358. To get rid of Avast antivirus, first use the Avast Remove and Reinstall tool for a complete uninstall, as a standard uninstallation may leave behind residual files. To use the tool, download it, run it with administrator privileges, select "Advanced Options," choose "Remove Only," and then click "Restart Now" when prompted.