Vistronic

http://www.ccleaner.com/
CCleaner is a freeware system optimization and privacy tool. It removes unused files from your system – allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. But the best part is that it’s fast (normally taking less that a second to run) and contains NO Spyware or Adware!
(works)

http://www.wisecleaner.com/index.html
Wise Registry Cleaner is one of the safest Registry cleaning tools available in the market today. Its scanning engine is thorough, safe and fast.
(works but be careful!)

Filed under: Freeware