|CCleaner is a freeware system optimization, privacy and cleaning 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. Additionally it contains a fully featured registry cleaner. But the best part is that it's fast (normally taking less than a second to run) and contains NO Spyware or Adware!|
Friend recommended this to fix some issues I'm having. First pass through it cleared out over 300 megs of orphaned drivers and bits.
Remember to back up your registry before doing changes!