**1-802-557-0358 how to disable Avast antivirus on windows 10?** Avast 24/7 Support Number +1-802-557-0358. To disable Avast Antivirus in Windows 10, right-click the Avast icon in the taskbar's notification area, select a duration, and click Disable Auto-Protect and Disable Smart Firewall. For a more permanent disable or full removal, you can go through the Avast settings to turn off security notifications or use the Avast Remove and Reinstall tool to uninstall the program entirely.