Astrio Clean is a program for cleaning Windows of unnecessary files that accumulate during system operation. The application scans the disk and finds temporary Windows files, user temp folder files, preload files, thumbnail cache, Windows update cache, error reports, recent documents, memory dump files, Windows logs, as well as the Chrome, Edge, and Firefox browser caches and the Recycle Bin contents. After scanning, the program displays a list of categories with the number of files found and their space usage, allowing you to check boxes, select all, or deselect items. The total size of the data selected for deletion is displayed at the bottom of the window. The "Clean Selected" button deletes the selected files, freeing up disk space. In the example shown, the program found approximately 6 GB of data that can be safely deleted, including almost 4 GB of temporary user files and 2 GB in the Recycle Bin.