IObit Advanced SystemCare Gratis
IObit Advanced SystemCare Free is a free system maintenance suite that lets you optimize your computer’s performance by performing multiple tasks. It can lighten up your PC by deleting unnecessary files from your hard drive, clean and defragment the Windows registry, remove malware, optimize Internet connection parameters and manage programs that are set to start automatically. It also includes a handy desktop widget that allows you to constantly monitor your CPU and RAM and free up your computer’s memory with one click. Download from here.
CCcleaner
CCleaner is one of the most popular programs to lighten your PC that includes in a single, very easy-to-use interface all the most useful tools to speed up your computer. Using it, you can free up space on your hard drive by deleting temporary files, eliminate online browsing traces, repair errors in the registry, disable unnecessary programs set to start automatically with Windows and much more. There is also a Mac OS X version that allows you to delete unnecessary files and repair your disk. Download from here.
DiskMax
DiskMax is a small, free application for Windows XP/Vista/7/8 that allows you to lighten up your PC by erasing all unnecessary files from your hard drive: remnants of uninstalled programs, documents in the recycle bin that have not been permanently deleted, browser history, temporary program files, list of recent documents and applications, thumbnails of images and videos in Windows Explorer, log files, remnants of service packs installed on your computer and much more. It should be used with caution. Download from here.
Glary Utilities
Glary Utilities is one of the most popular free PC optimization suites that allows you to speed up Windows by performing a wide range of tasks. These include: cleaning up your hard drive by deleting unnecessary/temporary files, removing traces of web browsing, cleaning up your registry, disabling programs set to start automatically and much more. The software can be used in 1-click mode, which performs all maintenance tasks automatically, or in manual mode, which allows you to perform individual maintenance tasks independently. Download from here.
SlimCleaner
SlimCleaner is an excellent program to lighten your PC that uses the power of the cloud to intelligently evaluate the useless files on your computer and eliminate them. Using it, it is possible to erase not only the system’s temporary files but also the superfluous data generated by multiple applications. It is based on a system of definitions which, as it is updated through the Internet, makes the software’s cleaning capabilities more and more advanced and effective. It is compatible with all major versions of Windows. Download from here.
Revo Uninstaller
As its name suggests, Revo Uninstaller is a program to completely uninstall applications on your PC without them leaving annoying residues on your hard drive and in the registry. It is extremely easy to use and allows you to remove even the most stubborn software that does not want to be deleted from your computer using standard uninstall procedures. It is available in two versions, a free version and a paid version with more features. Download from here.