CCleaner is a maintenance and cleaning program for your PC, it helps the PC to work master as it increases the free room in your disk.

The program eliminates recently used files, it empties the PC basin, cleans the cache memory, etc.

When the program finds all the elements it may erase, it will ask you if it can do it and you will have to select the ones you will and will not eliminate.

It also cleans the Windows Register.