: Keygens and cracks often contain spyware designed to steal browser cookies, saved passwords, and financial information.

: A powerful, open-source alternative that is completely free and focuses heavily on privacy and shredding files. Find it at BleachBit.org .

: A free, official tool from Microsoft that cleans up system logs and manages startup apps. You can download it directly from the Microsoft Store .

: Go to Settings > System > Storage and toggle on "Storage Sense" to automatically clear out unnecessary files.

: If you specifically want AVG, they offer a 7-day or 30-day free trial on the official AVG website so you can clean your system once for free without risks. How to Clean Your PC Manually (Built-in Windows Tools)

If you are looking to optimize your PC without spending money, there are several high-quality, free tools that perform the same functions as AVG TuneUp: