Kaspersky Cleaner 

There are a lot of system cleaning and optimization tools on the market, but few of them can claim they have such a prestigious creator. The fact that the famous Kasperksy Lab, worldwide known for its reliable antivirus products, also developed this system cleaner is already a guarantee for high quality.

Anyway, you shouldn't choose Kasperksy Cleaner over other system cleaners just because it's made by Kaspersky. It comes with other advantages as well. For example, its interface is really simple-to-use and straightforward. Even complete beginners can use it without any trouble at all. It also looks modern and elegant.

Kasperksy Cleaner lets you select only specific areas of your computer, such as log files, the cache of specific web browsers, cookies, and so on for cleaning. The cleaning will be quite fast regardless of how many areas you select for scanning.

Kasperksy Cleaner will also help you increase your privacy. It offers numerous settings that will let you disable Windows tracking and logging functions, among others.

To sum it all up, Kasperksy Cleaner is a great tool to clean and optimize your system and to increase your privacy level. Best of all, it's completely free.