Piriform CCleaner : is the number-one tool for cleaning your Windows PC. It protects your privacy online and makes your computer faster and more secure. Easy to use and a small, fast download. Piriform releases regular updates for CCleaner with many improvements.
- Install Any Latest Free Version of CCleaner.
- Turn Off Your Internet Connection >> (This is important,otherwise keys will not work)
- Launch / Run / Open >> CCleaner. (After Installation)
- Go to Options > About and Click Upgrade to PRO “Button”
- Enter Your Name And One Of Serial Keys Provided Below.
- Click Register
- Enjoy :)