The frequency of cleaning cache and unnecessary system files depends on your browsing habits and the amount of storage space on your computer. As a general guideline: Temporary Internet Files: It's recommended to clean your cache periodically, especially if you frequently browse the web. You can consider doing it once every few weeks or once a month. Unnecessary System Files: It's good practice to clean unnecessary system files regularly to free up disk space and optimize system performance. You can aim to do this every few months or as needed, depending on how quickly your storage space fills up.