CCleaner is our system optimizer, privacy and cleanup tool. Removes unused files from your system - allows Windows to run faster and free up valuable disk space. It also cleans traces of your online activities such as your Internet history. It also contains a fully installed registry cleaner. But the main thing is that it is fast (usually takes less than a second to use) and contains NO Spyware or Adware!

https://www.cc-cleaner.com/