This high CPU usage problem can be fixed both manually and automatically. Undoubtedly, to keep your system safe from threats, this activity is essential, but when these processes take 100% of the CPU, things get annoying. Since Avast Antivirus performs tasks such as background scanning, virus removal, real-time scanning, and cleaning, it consumes most of your CPU resources.
Fix: Avast Behavior Shield High CPU Usage.Steps to Permanently Deactivate Avast Behavior Shield.
