If you want to know how to prevent avast pop ups, you can follow the step given below:1. Restart your computer in safe mode.2. Go to Safe Mode with Networking.3. destroy all files on your computer which contain the Antivirus file name4. Then Update your anti-virus software and run a complete scan of your computer.Hopefully above steps will help you to fix the issue if not you can also follow our blog to see more on disable avast popups.