If you haven't downloaded this yet, I'd suggest using a more modern, reputable alternative or sticking to the built-in Windows "Disk Cleanup" and "Storage Sense" tools.
: Downloading software in .rar format from third-party sites carries a high risk of malware or "bundled" unwanted programs (PUPs). Always scan such files with updated antivirus software before extracting. Download advsysopt311 rar
While the software provides a decent suite of tools, downloading an old version via a compressed archive is not recommended . Most of these functions are now handled natively by modern Windows features. If you must use a system cleaner, it is safer to download the latest version directly from the official developer’s website. If you haven't downloaded this yet, I'd suggest