FCleaner is a freeware all-in-one Windows disk and registry cleaning and optimization tool. It removes unused files and invalid registry entries that are eating up your disk space and slowing your system down, tweaks your system and allows your Windows to run faster. FCleaner can also protect your privacy such as Internet History, the Cookies that websites leave behind. You can erase all the traces of your online activities in just one click with the help of FCleaner. NO Experience Or Computer Skills Necessary! FCleaner is free, but it does not contain any Spyware or Adware.