1. CCleaner: This free software is great for repairing and cleaning your laptop and desktop computer. It helps to remove junk files, clean up your registry, and optimize your system for better performance.
2. Glary Utilities: This free software provides a comprehensive set of powerful tools for repairing, optimizing, and maintaining your Windows PC. It includes a registry cleaner, disk cleaner, system optimizer, and more.
3. Malwarebytes: This free software is designed to protect your computer from malicious software, such as viruses, worms, and spyware. It can also help clean up any existing infections.
4. Advanced SystemCare: This free software provides an all-in-one solution for optimizing and cleaning your computer. It includes various features, such as a registry cleaner, disk cleaner, system optimizer, and more.