... it is recommended to run before a "heavy" games and after them.
If you notice that your computer has become slow down - just run the RAM Cleaning and after 5 seconds, your computer will work the same as if you would do a reboot.
The program runs in the background, you will not see any additional windows.
If the computer hangs for 1-5 seconds, it is a clearing of memory, do not worry. After that you can continue to work for your favorite computer.