For portable use, you can run CCleaner from a USB drive and take it with you for use on other computers. You can also use CCleaner to create a list of all the programs you have installed on your PC, which is useful if you're upgrading or moving to another computer.

 Scheduling CCleaner

 

 How to run CCleaner from a USB drive

 

 How to list installed programs

 

 How to increase the size of fonts CCleaner uses