represents a significant iteration in Avast's performance optimization suite, focusing on automated maintenance, disk space recovery, and system stability. Released as part of the 2021 software cycle, this specific build refined the "Sleep Mode" technology and enhanced the browser cleaning engine to support modern privacy standards. 1. Architectural Overview and Core Features

Avast Cleanup Premium 21.4 (Build 11223) is a comprehensive system optimization tool designed to improve PC performance by removing junk files, fixing registry issues, and managing background processes. This specific build focuses on refining the "Sleep Mode" technology and enhancing the browser cleaning engine. Key Features

: Scans for hard drive errors and reorganises files on HDDs to improve reliability and startup speeds. Software Updater